Attachment 348722 Details for Bug 189223 – Patch

[patch] Patch

bug-189223-20180901171626.patch (text/plain), 65.18 KB, created by Simon Fraser (smfr) on 2018-09-01 17:16:27 PDT

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Creator: Simon Fraser (smfr)

Created: 2018-09-01 17:16:27 PDT

Size: 65.18 KB

patch

obsolete

>Subversion Revision: 235579
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index c0f255ee662dddf497a1f265765ec3f9388c9f64..1afa94a06acd22fe194a0d5d68a3ca8ecbf9133d 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,88 @@
>+2018-09-01  Simon Fraser  <simon.fraser@apple.com>
>+
>+        Rename FilterEffectRenderer to CSSFilter
>+        https://bugs.webkit.org/show_bug.cgi?id=189223
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Filter was subclassed by SVGFilter for SVG, and FilterEffectRenderer for CSS,
>+        which was very confusing, especially when the code uses renderer() to get it.
>+        
>+        Rename FilterEffectRenderer to CSSFilter, and access via filter().
>+        
>+        Future cleanup will deal with FilterEffectRendererHelper.
>+
>+        * Sources.txt:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * css/CSSFilterImageValue.cpp:
>+        (WebCore::CSSFilterImageValue::image):
>+        * platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm:
>+        * platform/graphics/filters/Filter.h:
>+        (WebCore::Filter::isCSSFilter const):
>+        * rendering/CSSFilter.cpp: Copied from Source/WebCore/rendering/FilterEffectRenderer.cpp.
>+        (WebCore::endMatrixRow):
>+        (WebCore::lastMatrixRow):
>+        (WebCore::CSSFilter::create):
>+        (WebCore::CSSFilter::CSSFilter):
>+        (WebCore::m_sourceGraphic):
>+        (WebCore::CSSFilter::inputContext):
>+        (WebCore::CSSFilter::buildReferenceFilter):
>+        (WebCore::CSSFilter::build):
>+        (WebCore::CSSFilter::updateBackingStoreRect):
>+        (WebCore::CSSFilter::allocateBackingStoreIfNeeded):
>+        (WebCore::CSSFilter::clearIntermediateResults):
>+        (WebCore::CSSFilter::apply):
>+        (WebCore::CSSFilter::computeSourceImageRectForDirtyRect):
>+        (WebCore::CSSFilter::output const):
>+        (WebCore::CSSFilter::setSourceImageRect):
>+        (WebCore::CSSFilter::setMaxEffectRects):
>+        (WebCore::CSSFilter::outputRect const):
>+        * rendering/CSSFilter.h: Copied from Source/WebCore/rendering/FilterEffectRenderer.h.
>+        (isType):
>+        * rendering/FilterEffectRenderer.cpp:
>+        (WebCore::FilterEffectRendererHelper::prepareFilterEffect):
>+        (WebCore::FilterEffectRendererHelper::filterContext const):
>+        (WebCore::FilterEffectRendererHelper::beginFilterEffect):
>+        (WebCore::FilterEffectRendererHelper::applyFilterEffect):
>+        (WebCore::endMatrixRow): Deleted.
>+        (WebCore::lastMatrixRow): Deleted.
>+        (WebCore::FilterEffectRenderer::FilterEffectRenderer): Deleted.
>+        (WebCore::m_sourceGraphic): Deleted.
>+        (WebCore::FilterEffectRenderer::create): Deleted.
>+        (WebCore::FilterEffectRenderer::inputContext): Deleted.
>+        (WebCore::FilterEffectRenderer::buildReferenceFilter): Deleted.
>+        (WebCore::FilterEffectRenderer::build): Deleted.
>+        (WebCore::FilterEffectRenderer::updateBackingStoreRect): Deleted.
>+        (WebCore::FilterEffectRenderer::allocateBackingStoreIfNeeded): Deleted.
>+        (WebCore::FilterEffectRenderer::clearIntermediateResults): Deleted.
>+        (WebCore::FilterEffectRenderer::apply): Deleted.
>+        (WebCore::FilterEffectRenderer::computeSourceImageRectForDirtyRect): Deleted.
>+        (WebCore::FilterEffectRenderer::output const): Deleted.
>+        (WebCore::FilterEffectRenderer::setMaxEffectRects): Deleted.
>+        (WebCore::FilterEffectRenderer::outputRect const): Deleted.
>+        * rendering/FilterEffectRenderer.h:
>+        (WebCore::FilterEffectRendererHelper::FilterEffectRendererHelper):
>+        (WebCore::FilterEffectRenderer::setSourceImageRect): Deleted.
>+        * rendering/RenderBlockFlow.cpp:
>+        * rendering/RenderFrame.cpp:
>+        * rendering/RenderImage.cpp:
>+        * rendering/RenderLayer.cpp:
>+        (WebCore::RenderLayer::requiresFullLayerImageForFilters const):
>+        (WebCore::RenderLayer::filter const):
>+        (WebCore::RenderLayer::filterPainter const):
>+        (WebCore::RenderLayer::setupFilters):
>+        (WebCore::RenderLayer::calculateClipRects const):
>+        (WebCore::RenderLayer::filterRenderer const): Deleted.
>+        * rendering/RenderLayer.h:
>+        * rendering/RenderLayerBacking.cpp:
>+        * rendering/RenderLayerFilterInfo.cpp:
>+        (WebCore::RenderLayer::FilterInfo::setFilter):
>+        (WebCore::RenderLayer::FilterInfo::updateReferenceFilterClients):
>+        (WebCore::RenderLayer::FilterInfo::removeReferenceFilterClients):
>+        (WebCore::RenderLayer::FilterInfo::setRenderer): Deleted.
>+        * rendering/RenderLayerFilterInfo.h:
>+        * rendering/updating/RenderTreeBuilderBlock.cpp:
>+
> 2018-09-01  Simon Fraser  <simon.fraser@apple.com>
> 
>         Add some more filter logging
>diff --git a/Source/WebCore/Sources.txt b/Source/WebCore/Sources.txt
>index 5915736c5168492c500b8ae5c23f90ab48854560..0dcaa831e7fd763632efaa51026a4ed60f21cb07 100644
>--- a/Source/WebCore/Sources.txt
>+++ b/Source/WebCore/Sources.txt
>@@ -1837,6 +1837,7 @@ rendering/AutoTableLayout.cpp
> rendering/BidiRun.cpp
> rendering/BorderEdge.cpp
> rendering/BreakLines.cpp
>+rendering/CSSFilter.cpp
> rendering/ClipRect.cpp
> rendering/CounterNode.cpp
> rendering/EllipsisBox.cpp
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 71cec8cb1140f538e914b05badac66dd754ecc5e..1ae6827adcc00ca0fb041436490999c054cdb613 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -5609,6 +5609,8 @@
> 		0F4966A71DB40C4300A274BB /* JSDOMPointInit.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSDOMPointInit.h; sourceTree = "<group>"; };
> 		0F4966A81DB40C4300A274BB /* JSDOMPointReadOnly.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSDOMPointReadOnly.cpp; sourceTree = "<group>"; };
> 		0F4966A91DB40C4300A274BB /* JSDOMPointReadOnly.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSDOMPointReadOnly.h; sourceTree = "<group>"; };
>+		0F53FB81213B1BB800C40D34 /* CSSFilter.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CSSFilter.cpp; sourceTree = "<group>"; };
>+		0F53FB83213B1BB800C40D34 /* CSSFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CSSFilter.h; sourceTree = "<group>"; };
> 		0F54DCE31881051D003EEDBB /* TextAutoSizing.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = TextAutoSizing.cpp; sourceTree = "<group>"; };
> 		0F54DCE41881051D003EEDBB /* TextAutoSizing.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = TextAutoSizing.h; sourceTree = "<group>"; };
> 		0F54DD051881D5F5003EEDBB /* Touch.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Touch.h; sourceTree = "<group>"; };
>@@ -25737,6 +25739,8 @@
> 				BCDD454D1236C95C009A7985 /* ColumnInfo.h */,
> 				9392F14F0AD1862300691BD4 /* CounterNode.cpp */,
> 				9392F14B0AD1861B00691BD4 /* CounterNode.h */,
>+				0F53FB81213B1BB800C40D34 /* CSSFilter.cpp */,
>+				0F53FB83213B1BB800C40D34 /* CSSFilter.h */,
> 				A8CFF6CA0A1561CD000A4234 /* EllipsisBox.cpp */,
> 				A8CFF6BD0A156118000A4234 /* EllipsisBox.h */,
> 				31313F631443B35E006E2A90 /* FilterEffectRenderer.cpp */,
>@@ -31412,6 +31416,7 @@
> 				5CDD83641E4325A000621E92 /* LibWebRTCDataChannelHandler.cpp in Sources */,
> 				417612AF1E3A994000C3D81D /* LibWebRTCMediaEndpoint.cpp in Sources */,
> 				417612B11E3A994000C3D81D /* LibWebRTCPeerConnectionBackend.cpp in Sources */,
>+				41D28D0D2139E05800F4206F /* LibWebRTCStatsCollector.cpp in Sources */,
> 				9759E93E14EF1CF80026A2DD /* LoadableTextTrack.cpp in Sources */,
> 				445775EA2047303C008DCE5D /* LocalDefaultSystemAppearance.mm in Sources */,
> 				FABE72FE1059C21100D999DD /* MathMLNames.cpp in Sources */,
>@@ -31779,7 +31784,6 @@
> 				DECA7E651F9EBD8300E3B661 /* UnifiedSource234.cpp in Sources */,
> 				DECA7E661F9EBD8300E3B661 /* UnifiedSource235.cpp in Sources */,
> 				DECA7E671F9EBD8300E3B661 /* UnifiedSource236.cpp in Sources */,
>-				41D28D0D2139E05800F4206F /* LibWebRTCStatsCollector.cpp in Sources */,
> 				DECA7E681F9EBD8300E3B661 /* UnifiedSource237.cpp in Sources */,
> 				DECA7E691F9EBD8300E3B661 /* UnifiedSource238.cpp in Sources */,
> 				DECA7E6A1F9EBD8300E3B661 /* UnifiedSource239.cpp in Sources */,
>diff --git a/Source/WebCore/css/CSSFilterImageValue.cpp b/Source/WebCore/css/CSSFilterImageValue.cpp
>index 6acf744eab4a9eceaab6c6c72ef9ce958b02e515..6f253d13b331339221e152bbfb688f4b9cd841ae 100644
>--- a/Source/WebCore/css/CSSFilterImageValue.cpp
>+++ b/Source/WebCore/css/CSSFilterImageValue.cpp
>@@ -27,6 +27,7 @@
> #include "config.h"
> #include "CSSFilterImageValue.h"
> 
>+#include "CSSFilter.h"
> #include "CachedImage.h"
> #include "CachedResourceLoader.h"
> #include "FilterEffectRenderer.h"
>@@ -131,15 +132,15 @@ RefPtr<Image> CSSFilterImageValue::image(RenderElement* renderer, const FloatSiz
>     auto imageRect = FloatRect { { }, size };
>     texture->context().drawImage(*image, imageRect);
> 
>-    auto filterRenderer = FilterEffectRenderer::create();
>-    filterRenderer->setSourceImage(WTFMove(texture));
>-    filterRenderer->setSourceImageRect(imageRect);
>-    filterRenderer->setFilterRegion(imageRect);
>-    if (!filterRenderer->build(*renderer, m_filterOperations, FilterFunction))
>+    auto cssFilter = CSSFilter::create();
>+    cssFilter->setSourceImage(WTFMove(texture));
>+    cssFilter->setSourceImageRect(imageRect);
>+    cssFilter->setFilterRegion(imageRect);
>+    if (!cssFilter->build(*renderer, m_filterOperations, FilterConsumer::FilterFunction))
>         return &Image::nullImage();
>-    filterRenderer->apply();
>+    cssFilter->apply();
> 
>-    return filterRenderer->output()->copyImage();
>+    return cssFilter->output()->copyImage();
> }
> 
> void CSSFilterImageValue::filterImageChanged(const IntRect&)
>diff --git a/Source/WebCore/platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm b/Source/WebCore/platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm
>index 0b5f6fbe0b60e4f803dff12a6c7943e55478bf3d..3ab39dffea59c393394537fb91a026d234690394 100644
>--- a/Source/WebCore/platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm
>+++ b/Source/WebCore/platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm
>@@ -35,7 +35,7 @@
> 
> using namespace WebCore;
> 
>-// FIXME: Should share these values with FilterEffectRenderer::build() (https://bugs.webkit.org/show_bug.cgi?id=76008).
>+// FIXME: Should share these values with CSSFilter::build() (https://bugs.webkit.org/show_bug.cgi?id=76008).
> static const double sepiaFullConstants[3][3] = {
>     { 0.393, 0.769, 0.189 },
>     { 0.349, 0.686, 0.168 },
>diff --git a/Source/WebCore/platform/graphics/filters/Filter.h b/Source/WebCore/platform/graphics/filters/Filter.h
>index 501afd07fa07f6a78873a373b7747ba8b830c213..3bedea705b76d9bf1a1c519cb2e4375a8ae68281 100644
>--- a/Source/WebCore/platform/graphics/filters/Filter.h
>+++ b/Source/WebCore/platform/graphics/filters/Filter.h
>@@ -48,6 +48,7 @@ public:
>     void setRenderingMode(RenderingMode renderingMode) { m_renderingMode = renderingMode; }
> 
>     virtual bool isSVGFilter() const { return false; }
>+    virtual bool isCSSFilter() const { return false; }
> 
>     virtual FloatSize scaledByFilterResolution(FloatSize size) const { return size * m_filterResolution; }
>     
>diff --git a/Source/WebCore/rendering/CSSFilter.cpp b/Source/WebCore/rendering/CSSFilter.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..85b845ae4ae581c1ac7123d06e09c779cd27a0e0
>--- /dev/null
>+++ b/Source/WebCore/rendering/CSSFilter.cpp
>@@ -0,0 +1,399 @@
>+/*
>+ * Copyright (C) 2011-2017 Apple Inc. All rights reserved.
>+ * Copyright (C) 2013 Google Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
>+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
>+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
>+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
>+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
>+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
>+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
>+ */
>+
>+#include "config.h"
>+#include "CSSFilter.h"
>+
>+#include "CachedSVGDocument.h"
>+#include "CachedSVGDocumentReference.h"
>+#include "ElementIterator.h"
>+#include "FEColorMatrix.h"
>+#include "FEComponentTransfer.h"
>+#include "FEDropShadow.h"
>+#include "FEGaussianBlur.h"
>+#include "FEMerge.h"
>+#include "Logging.h"
>+#include "RenderLayer.h"
>+#include "SVGElement.h"
>+#include "SVGFilterBuilder.h"
>+#include "SVGFilterPrimitiveStandardAttributes.h"
>+#include "SourceGraphic.h"
>+#include <algorithm>
>+#include <wtf/MathExtras.h>
>+
>+#if USE(DIRECT2D)
>+#include <d2d1.h>
>+#endif
>+
>+namespace WebCore {
>+
>+static inline void endMatrixRow(Vector<float>& parameters)
>+{
>+    parameters.append(0);
>+    parameters.append(0);
>+}
>+
>+static inline void lastMatrixRow(Vector<float>& parameters)
>+{
>+    parameters.append(0);
>+    parameters.append(0);
>+    parameters.append(0);
>+    parameters.append(1);
>+    parameters.append(0);
>+}
>+
>+Ref<CSSFilter> CSSFilter::create()
>+{
>+    return adoptRef(*new CSSFilter);
>+}
>+
>+CSSFilter::CSSFilter()
>+    : Filter(FloatSize { 1, 1 })
>+    , m_sourceGraphic(SourceGraphic::create(*this))
>+{
>+}
>+
>+CSSFilter::~CSSFilter() = default;
>+
>+GraphicsContext* CSSFilter::inputContext()
>+{
>+    return sourceImage() ? &sourceImage()->context() : nullptr;
>+}
>+
>+RefPtr<FilterEffect> CSSFilter::buildReferenceFilter(RenderElement& renderer, FilterEffect& previousEffect, ReferenceFilterOperation& filterOperation)
>+{
>+    auto* cachedSVGDocumentReference = filterOperation.cachedSVGDocumentReference();
>+    auto* cachedSVGDocument = cachedSVGDocumentReference ? cachedSVGDocumentReference->document() : nullptr;
>+
>+    // If we have an SVG document, this is an external reference. Otherwise
>+    // we look up the referenced node in the current document.
>+    Document* document;
>+    if (!cachedSVGDocument)
>+        document = &renderer.document();
>+    else {
>+        document = cachedSVGDocument->document();
>+        if (!document)
>+            return nullptr;
>+    }
>+
>+    auto* filter = document->getElementById(filterOperation.fragment());
>+    if (!filter) {
>+        // Although we did not find the referenced filter, it might exist later in the document.
>+        // FIXME: This skips anonymous RenderObjects. <https://webkit.org/b/131085>
>+        if (auto* element = renderer.element())
>+            document->accessSVGExtensions().addPendingResource(filterOperation.fragment(), element);
>+        return nullptr;
>+    }
>+
>+    RefPtr<FilterEffect> effect;
>+
>+    auto builder = std::make_unique<SVGFilterBuilder>(&previousEffect);
>+
>+    for (auto& effectElement : childrenOfType<SVGFilterPrimitiveStandardAttributes>(*filter)) {
>+        effect = effectElement.build(builder.get(), *this);
>+        if (!effect)
>+            continue;
>+
>+        effectElement.setStandardAttributes(effect.get());
>+        if (effectElement.renderer())
>+            effect->setOperatingColorSpace(effectElement.renderer()->style().svgStyle().colorInterpolationFilters() == ColorInterpolation::LinearRGB ? ColorSpaceLinearRGB : ColorSpaceSRGB);
>+
>+        builder->add(effectElement.result(), effect);
>+        m_effects.append(*effect);
>+    }
>+    return effect;
>+}
>+
>+bool CSSFilter::build(RenderElement& renderer, const FilterOperations& operations, FilterConsumer consumer)
>+{
>+    m_hasFilterThatMovesPixels = operations.hasFilterThatMovesPixels();
>+    m_hasFilterThatShouldBeRestrictedBySecurityOrigin = operations.hasFilterThatShouldBeRestrictedBySecurityOrigin();
>+    if (m_hasFilterThatMovesPixels)
>+        m_outsets = operations.outsets();
>+
>+    m_effects.clear();
>+
>+    RefPtr<FilterEffect> previousEffect = m_sourceGraphic.ptr();
>+    for (auto& operation : operations.operations()) {
>+        RefPtr<FilterEffect> effect;
>+        auto& filterOperation = *operation;
>+        switch (filterOperation.type()) {
>+        case FilterOperation::REFERENCE: {
>+            auto& referenceOperation = downcast<ReferenceFilterOperation>(filterOperation);
>+            effect = buildReferenceFilter(renderer, *previousEffect, referenceOperation);
>+            referenceOperation.setFilterEffect(effect.copyRef());
>+            break;
>+        }
>+        case FilterOperation::GRAYSCALE: {
>+            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>+            Vector<float> inputParameters;
>+            double oneMinusAmount = clampTo(1 - colorMatrixOperation.amount(), 0.0, 1.0);
>+
>+            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#grayscaleEquivalent
>+            // for information on parameters.
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.2126 + 0.7874 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.7152 + 0.2848 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.0722 + 0.9278 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            lastMatrixRow(inputParameters);
>+
>+            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
>+            break;
>+        }
>+        case FilterOperation::SEPIA: {
>+            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>+            Vector<float> inputParameters;
>+            double oneMinusAmount = clampTo(1 - colorMatrixOperation.amount(), 0.0, 1.0);
>+
>+            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#sepiaEquivalent
>+            // for information on parameters.
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.393 + 0.607 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.769 - 0.769 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.189 - 0.189 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.349 - 0.349 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.686 + 0.314 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.168 - 0.168 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            inputParameters.append(narrowPrecisionToFloat(0.272 - 0.272 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.534 - 0.534 * oneMinusAmount));
>+            inputParameters.append(narrowPrecisionToFloat(0.131 + 0.869 * oneMinusAmount));
>+            endMatrixRow(inputParameters);
>+
>+            lastMatrixRow(inputParameters);
>+
>+            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
>+            break;
>+        }
>+        case FilterOperation::SATURATE: {
>+            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>+            Vector<float> inputParameters;
>+            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation.amount()));
>+            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
>+            break;
>+        }
>+        case FilterOperation::HUE_ROTATE: {
>+            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>+            Vector<float> inputParameters;
>+            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation.amount()));
>+            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
>+            break;
>+        }
>+        case FilterOperation::INVERT: {
>+            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>+            ComponentTransferFunction transferFunction;
>+            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
>+            Vector<float> transferParameters;
>+            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation.amount()));
>+            transferParameters.append(narrowPrecisionToFloat(1 - componentTransferOperation.amount()));
>+            transferFunction.tableValues = transferParameters;
>+
>+            ComponentTransferFunction nullFunction;
>+            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>+            break;
>+        }
>+        case FilterOperation::APPLE_INVERT_LIGHTNESS:
>+            ASSERT_NOT_REACHED(); // APPLE_INVERT_LIGHTNESS is only used in -apple-color-filter.
>+            break;
>+        case FilterOperation::OPACITY: {
>+            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>+            ComponentTransferFunction transferFunction;
>+            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
>+            Vector<float> transferParameters;
>+            transferParameters.append(0);
>+            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation.amount()));
>+            transferFunction.tableValues = transferParameters;
>+
>+            ComponentTransferFunction nullFunction;
>+            effect = FEComponentTransfer::create(*this, nullFunction, nullFunction, nullFunction, transferFunction);
>+            break;
>+        }
>+        case FilterOperation::BRIGHTNESS: {
>+            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>+            ComponentTransferFunction transferFunction;
>+            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
>+            transferFunction.slope = narrowPrecisionToFloat(componentTransferOperation.amount());
>+            transferFunction.intercept = 0;
>+
>+            ComponentTransferFunction nullFunction;
>+            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>+            break;
>+        }
>+        case FilterOperation::CONTRAST: {
>+            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>+            ComponentTransferFunction transferFunction;
>+            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
>+            float amount = narrowPrecisionToFloat(componentTransferOperation.amount());
>+            transferFunction.slope = amount;
>+            transferFunction.intercept = -0.5 * amount + 0.5;
>+            
>+            ComponentTransferFunction nullFunction;
>+            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>+            break;
>+        }
>+        case FilterOperation::BLUR: {
>+            auto& blurOperation = downcast<BlurFilterOperation>(filterOperation);
>+            float stdDeviation = floatValueForLength(blurOperation.stdDeviation(), 0);
>+            effect = FEGaussianBlur::create(*this, stdDeviation, stdDeviation, consumer == FilterConsumer::FilterProperty ? EDGEMODE_NONE : EDGEMODE_DUPLICATE);
>+            break;
>+        }
>+        case FilterOperation::DROP_SHADOW: {
>+            auto& dropShadowOperation = downcast<DropShadowFilterOperation>(filterOperation);
>+            effect = FEDropShadow::create(*this, dropShadowOperation.stdDeviation(), dropShadowOperation.stdDeviation(),
>+                dropShadowOperation.x(), dropShadowOperation.y(), dropShadowOperation.color(), 1);
>+            break;
>+        }
>+        default:
>+            break;
>+        }
>+
>+        if (effect) {
>+            // Unlike SVG Filters and CSSFilterImages, filter functions on the filter
>+            // property applied here should not clip to their primitive subregions.
>+            effect->setClipsToBounds(consumer == FilterConsumer::FilterFunction);
>+            effect->setOperatingColorSpace(ColorSpaceSRGB);
>+            
>+            if (filterOperation.type() != FilterOperation::REFERENCE) {
>+                effect->inputEffects().append(WTFMove(previousEffect));
>+                m_effects.append(*effect);
>+            }
>+            previousEffect = WTFMove(effect);
>+        }
>+    }
>+
>+    // If we didn't make any effects, tell our caller we are not valid.
>+    if (m_effects.isEmpty())
>+        return false;
>+
>+    setMaxEffectRects(m_sourceDrawingRegion);
>+    return true;
>+}
>+
>+bool CSSFilter::updateBackingStoreRect(const FloatRect& filterRect)
>+{
>+    if (filterRect.isEmpty() || ImageBuffer::sizeNeedsClamping(filterRect.size()))
>+        return false;
>+
>+    if (filterRect == sourceImageRect())
>+        return false;
>+
>+    setSourceImageRect(filterRect);
>+    return true;
>+}
>+
>+void CSSFilter::allocateBackingStoreIfNeeded(const GraphicsContext& targetContext)
>+{
>+    // At this point the effect chain has been built, and the
>+    // source image sizes set. We just need to attach the graphic
>+    // buffer if we have not yet done so.
>+
>+    if (m_graphicsBufferAttached)
>+        return;
>+
>+    IntSize logicalSize { m_sourceDrawingRegion.size() };
>+    if (!sourceImage() || sourceImage()->logicalSize() != logicalSize) {
>+#if USE(DIRECT2D)
>+        setSourceImage(ImageBuffer::create(logicalSize, renderingMode(), &targetContext, filterScale()));
>+#else
>+        UNUSED_PARAM(targetContext);
>+        setSourceImage(ImageBuffer::create(logicalSize, renderingMode(), filterScale()));
>+#endif
>+    }
>+    m_graphicsBufferAttached = true;
>+}
>+
>+void CSSFilter::clearIntermediateResults()
>+{
>+    m_sourceGraphic->clearResult();
>+    for (auto& effect : m_effects)
>+        effect->clearResult();
>+}
>+
>+void CSSFilter::apply()
>+{
>+    auto& effect = m_effects.last().get();
>+    effect.apply();
>+    effect.transformResultColorSpace(ColorSpaceSRGB);
>+}
>+
>+LayoutRect CSSFilter::computeSourceImageRectForDirtyRect(const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect)
>+{
>+    // The result of this function is the area in the "filterBoxRect" that needs to be repainted, so that we fully cover the "dirtyRect".
>+    auto rectForRepaint = dirtyRect;
>+    if (hasFilterThatMovesPixels()) {
>+        // Note that the outsets are reversed here because we are going backwards -> we have the dirty rect and
>+        // need to find out what is the rectangle that might influence the result inside that dirty rect.
>+        rectForRepaint.move(-m_outsets.right(), -m_outsets.bottom());
>+        rectForRepaint.expand(m_outsets.left() + m_outsets.right(), m_outsets.top() + m_outsets.bottom());
>+    }
>+    rectForRepaint.intersect(filterBoxRect);
>+    return rectForRepaint;
>+}
>+
>+ImageBuffer* CSSFilter::output() const
>+{
>+    return m_effects.last()->imageBufferResult();
>+}
>+
>+void CSSFilter::setSourceImageRect(const FloatRect& sourceImageRect)
>+{
>+    m_sourceDrawingRegion = sourceImageRect;
>+    setMaxEffectRects(sourceImageRect);
>+    setFilterRegion(sourceImageRect);
>+    m_graphicsBufferAttached = false;
>+}
>+
>+
>+void CSSFilter::setMaxEffectRects(const FloatRect& effectRect)
>+{
>+    for (auto& effect : m_effects)
>+        effect->setMaxEffectRect(effectRect);
>+}
>+
>+IntRect CSSFilter::outputRect() const
>+{
>+    auto& lastEffect = m_effects.last().get();
>+    if (!lastEffect.hasResult())
>+        return { };
>+    return lastEffect.requestedRegionOfInputImageData(IntRect { m_filterRegion });
>+}
>+
>+} // namespace WebCore
>diff --git a/Source/WebCore/rendering/CSSFilter.h b/Source/WebCore/rendering/CSSFilter.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..c2a238780b103b7cb9b17800688ff098c943cc56
>--- /dev/null
>+++ b/Source/WebCore/rendering/CSSFilter.h
>@@ -0,0 +1,102 @@
>+/*
>+ * Copyright (C) 2011-2017 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
>+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
>+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
>+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
>+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
>+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
>+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
>+ */
>+
>+#pragma once
>+
>+#include "Filter.h"
>+#include "IntRectExtent.h"
>+#include "LayoutRect.h"
>+#include <wtf/TypeCasts.h>
>+
>+namespace WebCore {
>+
>+class FilterEffect;
>+class FilterOperations;
>+class GraphicsContext;
>+class ReferenceFilterOperation;
>+class RenderElement;
>+class SourceGraphic;
>+
>+enum class FilterConsumer { FilterProperty, FilterFunction };
>+
>+class CSSFilter final : public Filter {
>+    WTF_MAKE_FAST_ALLOCATED;
>+public:
>+    friend class FilterEffectRendererHelper;
>+
>+    static Ref<CSSFilter> create();
>+
>+    void setSourceImageRect(const FloatRect&);
>+    void setFilterRegion(const FloatRect& filterRegion) { m_filterRegion = filterRegion; }
>+
>+    ImageBuffer* output() const;
>+
>+    bool build(RenderElement&, const FilterOperations&, FilterConsumer);
>+    void clearIntermediateResults();
>+    void apply();
>+
>+    bool hasFilterThatMovesPixels() const { return m_hasFilterThatMovesPixels; }
>+    bool hasFilterThatShouldBeRestrictedBySecurityOrigin() const { return m_hasFilterThatShouldBeRestrictedBySecurityOrigin; }
>+
>+private:
>+    CSSFilter();
>+    virtual ~CSSFilter();
>+
>+    bool isCSSFilter() const final { return true; }
>+
>+    FloatRect sourceImageRect() const final { return m_sourceDrawingRegion; }
>+    FloatRect filterRegion() const final { return m_filterRegion; }
>+
>+    RefPtr<FilterEffect> buildReferenceFilter(RenderElement&, FilterEffect& previousEffect, ReferenceFilterOperation&);
>+
>+    void setMaxEffectRects(const FloatRect&);
>+
>+    GraphicsContext* inputContext();
>+
>+    bool updateBackingStoreRect(const FloatRect& filterRect);
>+    void allocateBackingStoreIfNeeded(const GraphicsContext&);
>+
>+    IntRect outputRect() const;
>+
>+    LayoutRect computeSourceImageRectForDirtyRect(const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect);
>+
>+    FloatRect m_sourceDrawingRegion;
>+    FloatRect m_filterRegion;
>+
>+    Vector<Ref<FilterEffect>> m_effects;
>+    Ref<SourceGraphic> m_sourceGraphic;
>+
>+    IntRectExtent m_outsets;
>+
>+    bool m_graphicsBufferAttached { false };
>+    bool m_hasFilterThatMovesPixels { false };
>+    bool m_hasFilterThatShouldBeRestrictedBySecurityOrigin { false };
>+};
>+
>+} // namespace WebCore
>+
>+SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::CSSFilter)
>+    static bool isType(const WebCore::Filter& filter) { return filter.isCSSFilter(); }
>+SPECIALIZE_TYPE_TRAITS_END()
>diff --git a/Source/WebCore/rendering/FilterEffectRenderer.cpp b/Source/WebCore/rendering/FilterEffectRenderer.cpp
>index 8bf7ae45265ad697f510dd0b47109e0bd33bdcda..d3b5d2598466889eb16005f03aad808cd25f0112 100644
>--- a/Source/WebCore/rendering/FilterEffectRenderer.cpp
>+++ b/Source/WebCore/rendering/FilterEffectRenderer.cpp
>@@ -27,6 +27,7 @@
> #include "config.h"
> #include "FilterEffectRenderer.h"
> 
>+#include "CSSFilter.h"
> #include "CachedSVGDocument.h"
> #include "CachedSVGDocumentReference.h"
> #include "ElementIterator.h"
>@@ -50,349 +51,12 @@
> 
> namespace WebCore {
> 
>-static inline void endMatrixRow(Vector<float>& parameters)
>-{
>-    parameters.append(0);
>-    parameters.append(0);
>-}
>-
>-static inline void lastMatrixRow(Vector<float>& parameters)
>-{
>-    parameters.append(0);
>-    parameters.append(0);
>-    parameters.append(0);
>-    parameters.append(1);
>-    parameters.append(0);
>-}
>-
>-inline FilterEffectRenderer::FilterEffectRenderer()
>-    : Filter(FloatSize { 1, 1 })
>-    , m_sourceGraphic(SourceGraphic::create(*this))
>-{
>-}
>-
>-Ref<FilterEffectRenderer> FilterEffectRenderer::create()
>-{
>-    return adoptRef(*new FilterEffectRenderer);
>-}
>-
>-FilterEffectRenderer::~FilterEffectRenderer() = default;
>-
>-GraphicsContext* FilterEffectRenderer::inputContext()
>-{
>-    return sourceImage() ? &sourceImage()->context() : nullptr;
>-}
>-
>-RefPtr<FilterEffect> FilterEffectRenderer::buildReferenceFilter(RenderElement& renderer, FilterEffect& previousEffect, ReferenceFilterOperation& filterOperation)
>-{
>-    auto* cachedSVGDocumentReference = filterOperation.cachedSVGDocumentReference();
>-    auto* cachedSVGDocument = cachedSVGDocumentReference ? cachedSVGDocumentReference->document() : nullptr;
>-
>-    // If we have an SVG document, this is an external reference. Otherwise
>-    // we look up the referenced node in the current document.
>-    Document* document;
>-    if (!cachedSVGDocument)
>-        document = &renderer.document();
>-    else {
>-        document = cachedSVGDocument->document();
>-        if (!document)
>-            return nullptr;
>-    }
>-
>-    auto* filter = document->getElementById(filterOperation.fragment());
>-    if (!filter) {
>-        // Although we did not find the referenced filter, it might exist later in the document.
>-        // FIXME: This skips anonymous RenderObjects. <https://webkit.org/b/131085>
>-        if (auto* element = renderer.element())
>-            document->accessSVGExtensions().addPendingResource(filterOperation.fragment(), element);
>-        return nullptr;
>-    }
>-
>-    RefPtr<FilterEffect> effect;
>-
>-    auto builder = std::make_unique<SVGFilterBuilder>(&previousEffect);
>-
>-    for (auto& effectElement : childrenOfType<SVGFilterPrimitiveStandardAttributes>(*filter)) {
>-        effect = effectElement.build(builder.get(), *this);
>-        if (!effect)
>-            continue;
>-
>-        effectElement.setStandardAttributes(effect.get());
>-        if (effectElement.renderer())
>-            effect->setOperatingColorSpace(effectElement.renderer()->style().svgStyle().colorInterpolationFilters() == ColorInterpolation::LinearRGB ? ColorSpaceLinearRGB : ColorSpaceSRGB);
>-
>-        builder->add(effectElement.result(), effect);
>-        m_effects.append(*effect);
>-    }
>-    return effect;
>-}
>-
>-bool FilterEffectRenderer::build(RenderElement& renderer, const FilterOperations& operations, FilterConsumer consumer)
>-{
>-    m_hasFilterThatMovesPixels = operations.hasFilterThatMovesPixels();
>-    m_hasFilterThatShouldBeRestrictedBySecurityOrigin = operations.hasFilterThatShouldBeRestrictedBySecurityOrigin();
>-    if (m_hasFilterThatMovesPixels)
>-        m_outsets = operations.outsets();
>-
>-    m_effects.clear();
>-
>-    RefPtr<FilterEffect> previousEffect = m_sourceGraphic.ptr();
>-    for (auto& operation : operations.operations()) {
>-        RefPtr<FilterEffect> effect;
>-        auto& filterOperation = *operation;
>-        switch (filterOperation.type()) {
>-        case FilterOperation::REFERENCE: {
>-            auto& referenceOperation = downcast<ReferenceFilterOperation>(filterOperation);
>-            effect = buildReferenceFilter(renderer, *previousEffect, referenceOperation);
>-            referenceOperation.setFilterEffect(effect.copyRef());
>-            break;
>-        }
>-        case FilterOperation::GRAYSCALE: {
>-            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>-            Vector<float> inputParameters;
>-            double oneMinusAmount = clampTo(1 - colorMatrixOperation.amount(), 0.0, 1.0);
>-
>-            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#grayscaleEquivalent
>-            // for information on parameters.
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.2126 + 0.7874 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.7152 + 0.2848 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.0722 - 0.0722 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.2126 - 0.2126 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.7152 - 0.7152 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.0722 + 0.9278 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            lastMatrixRow(inputParameters);
>-
>-            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
>-            break;
>-        }
>-        case FilterOperation::SEPIA: {
>-            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>-            Vector<float> inputParameters;
>-            double oneMinusAmount = clampTo(1 - colorMatrixOperation.amount(), 0.0, 1.0);
>-
>-            // See https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#sepiaEquivalent
>-            // for information on parameters.
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.393 + 0.607 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.769 - 0.769 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.189 - 0.189 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.349 - 0.349 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.686 + 0.314 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.168 - 0.168 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            inputParameters.append(narrowPrecisionToFloat(0.272 - 0.272 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.534 - 0.534 * oneMinusAmount));
>-            inputParameters.append(narrowPrecisionToFloat(0.131 + 0.869 * oneMinusAmount));
>-            endMatrixRow(inputParameters);
>-
>-            lastMatrixRow(inputParameters);
>-
>-            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_MATRIX, inputParameters);
>-            break;
>-        }
>-        case FilterOperation::SATURATE: {
>-            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>-            Vector<float> inputParameters;
>-            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation.amount()));
>-            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_SATURATE, inputParameters);
>-            break;
>-        }
>-        case FilterOperation::HUE_ROTATE: {
>-            auto& colorMatrixOperation = downcast<BasicColorMatrixFilterOperation>(filterOperation);
>-            Vector<float> inputParameters;
>-            inputParameters.append(narrowPrecisionToFloat(colorMatrixOperation.amount()));
>-            effect = FEColorMatrix::create(*this, FECOLORMATRIX_TYPE_HUEROTATE, inputParameters);
>-            break;
>-        }
>-        case FilterOperation::INVERT: {
>-            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>-            ComponentTransferFunction transferFunction;
>-            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
>-            Vector<float> transferParameters;
>-            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation.amount()));
>-            transferParameters.append(narrowPrecisionToFloat(1 - componentTransferOperation.amount()));
>-            transferFunction.tableValues = transferParameters;
>-
>-            ComponentTransferFunction nullFunction;
>-            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>-            break;
>-        }
>-        case FilterOperation::APPLE_INVERT_LIGHTNESS:
>-            ASSERT_NOT_REACHED(); // APPLE_INVERT_LIGHTNESS is only used in -apple-color-filter.
>-            break;
>-        case FilterOperation::OPACITY: {
>-            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>-            ComponentTransferFunction transferFunction;
>-            transferFunction.type = FECOMPONENTTRANSFER_TYPE_TABLE;
>-            Vector<float> transferParameters;
>-            transferParameters.append(0);
>-            transferParameters.append(narrowPrecisionToFloat(componentTransferOperation.amount()));
>-            transferFunction.tableValues = transferParameters;
>-
>-            ComponentTransferFunction nullFunction;
>-            effect = FEComponentTransfer::create(*this, nullFunction, nullFunction, nullFunction, transferFunction);
>-            break;
>-        }
>-        case FilterOperation::BRIGHTNESS: {
>-            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>-            ComponentTransferFunction transferFunction;
>-            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
>-            transferFunction.slope = narrowPrecisionToFloat(componentTransferOperation.amount());
>-            transferFunction.intercept = 0;
>-
>-            ComponentTransferFunction nullFunction;
>-            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>-            break;
>-        }
>-        case FilterOperation::CONTRAST: {
>-            auto& componentTransferOperation = downcast<BasicComponentTransferFilterOperation>(filterOperation);
>-            ComponentTransferFunction transferFunction;
>-            transferFunction.type = FECOMPONENTTRANSFER_TYPE_LINEAR;
>-            float amount = narrowPrecisionToFloat(componentTransferOperation.amount());
>-            transferFunction.slope = amount;
>-            transferFunction.intercept = -0.5 * amount + 0.5;
>-            
>-            ComponentTransferFunction nullFunction;
>-            effect = FEComponentTransfer::create(*this, transferFunction, transferFunction, transferFunction, nullFunction);
>-            break;
>-        }
>-        case FilterOperation::BLUR: {
>-            auto& blurOperation = downcast<BlurFilterOperation>(filterOperation);
>-            float stdDeviation = floatValueForLength(blurOperation.stdDeviation(), 0);
>-            effect = FEGaussianBlur::create(*this, stdDeviation, stdDeviation, consumer == FilterProperty ? EDGEMODE_NONE : EDGEMODE_DUPLICATE);
>-            break;
>-        }
>-        case FilterOperation::DROP_SHADOW: {
>-            auto& dropShadowOperation = downcast<DropShadowFilterOperation>(filterOperation);
>-            effect = FEDropShadow::create(*this, dropShadowOperation.stdDeviation(), dropShadowOperation.stdDeviation(),
>-                dropShadowOperation.x(), dropShadowOperation.y(), dropShadowOperation.color(), 1);
>-            break;
>-        }
>-        default:
>-            break;
>-        }
>-
>-        if (effect) {
>-            // Unlike SVG Filters and CSSFilterImages, filter functions on the filter
>-            // property applied here should not clip to their primitive subregions.
>-            effect->setClipsToBounds(consumer == FilterFunction);
>-            effect->setOperatingColorSpace(ColorSpaceSRGB);
>-            
>-            if (filterOperation.type() != FilterOperation::REFERENCE) {
>-                effect->inputEffects().append(WTFMove(previousEffect));
>-                m_effects.append(*effect);
>-            }
>-            previousEffect = WTFMove(effect);
>-        }
>-    }
>-
>-    // If we didn't make any effects, tell our caller we are not valid.
>-    if (m_effects.isEmpty())
>-        return false;
>-
>-    setMaxEffectRects(m_sourceDrawingRegion);
>-    return true;
>-}
>-
>-bool FilterEffectRenderer::updateBackingStoreRect(const FloatRect& filterRect)
>-{
>-    if (filterRect.isEmpty() || ImageBuffer::sizeNeedsClamping(filterRect.size()))
>-        return false;
>-
>-    if (filterRect == sourceImageRect())
>-        return false;
>-
>-    setSourceImageRect(filterRect);
>-    return true;
>-}
>-
>-void FilterEffectRenderer::allocateBackingStoreIfNeeded(const GraphicsContext& targetContext)
>-{
>-    // At this point the effect chain has been built, and the
>-    // source image sizes set. We just need to attach the graphic
>-    // buffer if we have not yet done so.
>-
>-    if (m_graphicsBufferAttached)
>-        return;
>-
>-    IntSize logicalSize { m_sourceDrawingRegion.size() };
>-    if (!sourceImage() || sourceImage()->logicalSize() != logicalSize) {
>-#if USE(DIRECT2D)
>-        setSourceImage(ImageBuffer::create(logicalSize, renderingMode(), &targetContext, filterScale()));
>-#else
>-        UNUSED_PARAM(targetContext);
>-        setSourceImage(ImageBuffer::create(logicalSize, renderingMode(), filterScale()));
>-#endif
>-    }
>-    m_graphicsBufferAttached = true;
>-}
>-
>-void FilterEffectRenderer::clearIntermediateResults()
>-{
>-    m_sourceGraphic->clearResult();
>-    for (auto& effect : m_effects)
>-        effect->clearResult();
>-}
>-
>-void FilterEffectRenderer::apply()
>-{
>-    auto& effect = m_effects.last().get();
>-    effect.apply();
>-    effect.transformResultColorSpace(ColorSpaceSRGB);
>-}
>-
>-LayoutRect FilterEffectRenderer::computeSourceImageRectForDirtyRect(const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect)
>-{
>-    // The result of this function is the area in the "filterBoxRect" that needs to be repainted, so that we fully cover the "dirtyRect".
>-    auto rectForRepaint = dirtyRect;
>-    if (hasFilterThatMovesPixels()) {
>-        // Note that the outsets are reversed here because we are going backwards -> we have the dirty rect and
>-        // need to find out what is the rectangle that might influence the result inside that dirty rect.
>-        rectForRepaint.move(-m_outsets.right(), -m_outsets.bottom());
>-        rectForRepaint.expand(m_outsets.left() + m_outsets.right(), m_outsets.top() + m_outsets.bottom());
>-    }
>-    rectForRepaint.intersect(filterBoxRect);
>-    return rectForRepaint;
>-}
>-
>-ImageBuffer* FilterEffectRenderer::output() const
>-{
>-    return m_effects.last()->imageBufferResult();
>-}
>-
>-void FilterEffectRenderer::setMaxEffectRects(const FloatRect& effectRect)
>-{
>-    for (auto& effect : m_effects)
>-        effect->setMaxEffectRect(effectRect);
>-}
>-
>-IntRect FilterEffectRenderer::outputRect() const
>-{
>-    auto& lastEffect = m_effects.last().get();
>-    if (!lastEffect.hasResult())
>-        return { };
>-    return lastEffect.requestedRegionOfInputImageData(IntRect { m_filterRegion });
>-}
>-
> bool FilterEffectRendererHelper::prepareFilterEffect(RenderLayer& layer, const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect, const LayoutRect& layerRepaintRect)
> {
>     ASSERT(m_haveFilterEffect);
>-    ASSERT(layer.filterRenderer());
>+    ASSERT(layer.filter());
> 
>-    auto& filter = *layer.filterRenderer();
>+    auto& filter = *layer.filter();
>     auto filterSourceRect = filter.computeSourceImageRectForDirtyRect(filterBoxRect, dirtyRect);
> 
>     if (filterSourceRect.isEmpty()) {
>@@ -424,15 +88,15 @@ GraphicsContext* FilterEffectRendererHelper::filterContext() const
> {
>     if (!m_haveFilterEffect)
>         return nullptr;
>-    return m_renderLayer->filterRenderer()->inputContext();
>+    return m_renderLayer->filter()->inputContext();
> }
> 
> bool FilterEffectRendererHelper::beginFilterEffect()
> {
>     ASSERT(m_renderLayer);
>-    ASSERT(m_renderLayer->filterRenderer());
>+    ASSERT(m_renderLayer->filter());
> 
>-    auto& filter = *m_renderLayer->filterRenderer();
>+    auto& filter = *m_renderLayer->filter();
>     filter.allocateBackingStoreIfNeeded(m_targetContext);
>     // Paint into the context that represents the SourceGraphic of the filter.
>     auto* sourceGraphicsContext = filter.inputContext();
>@@ -456,12 +120,12 @@ void FilterEffectRendererHelper::applyFilterEffect(GraphicsContext& destinationC
> {
>     ASSERT(m_haveFilterEffect);
>     ASSERT(m_renderLayer);
>-    ASSERT(m_renderLayer->filterRenderer());
>-    ASSERT(m_renderLayer->filterRenderer()->inputContext());
>+    ASSERT(m_renderLayer->filter());
>+    ASSERT(m_renderLayer->filter()->inputContext());
> 
>     LOG_WITH_STREAM(Filters, stream << "\nFilterEffectRendererHelper " << this << " applyFilterEffect");
> 
>-    auto& filter = *m_renderLayer->filterRenderer();
>+    auto& filter = *m_renderLayer->filter();
>     filter.inputContext()->restore();
> 
>     filter.apply();
>diff --git a/Source/WebCore/rendering/FilterEffectRenderer.h b/Source/WebCore/rendering/FilterEffectRenderer.h
>index 4b4492d5308d4378653fdfcdb7a0e5315cde6a9c..3fb1a3427f2b90bd71e3b877e3f8121925ff7d7a 100644
>--- a/Source/WebCore/rendering/FilterEffectRenderer.h
>+++ b/Source/WebCore/rendering/FilterEffectRenderer.h
>@@ -25,27 +25,22 @@
> 
> #pragma once
> 
>-#include "Filter.h"
>-#include "IntRectExtent.h"
> #include "LayoutRect.h"
> 
> namespace WebCore {
> 
> class Document;
>-class FilterEffect;
>-class FilterOperations;
> class GraphicsContext;
>-class ReferenceFilterOperation;
>-class RenderElement;
> class RenderLayer;
>-class SourceGraphic;
>-
>-enum FilterConsumer { FilterProperty, FilterFunction };
> 
> class FilterEffectRendererHelper {
>     WTF_MAKE_FAST_ALLOCATED;
> public:
>-    FilterEffectRendererHelper(bool haveFilterEffect, GraphicsContext& targetContext);
>+    FilterEffectRendererHelper(bool haveFilterEffect, GraphicsContext& targetContext)
>+        : m_targetContext(targetContext)
>+        , m_haveFilterEffect(haveFilterEffect)
>+    {
>+    }
> 
>     bool haveFilterEffect() const { return m_haveFilterEffect; }
>     bool hasStartedFilterEffect() const { return m_startedFilterEffect; }
>@@ -59,7 +54,7 @@ public:
>     const LayoutRect& repaintRect() const { return m_repaintRect; }
> 
> private:
>-    RenderLayer* m_renderLayer { nullptr }; // FIXME: this is mainly used to get the FilterEffectRenderer. FilterEffectRendererHelper should be weaned off it.
>+    RenderLayer* m_renderLayer { nullptr }; // FIXME: this is mainly used to get the CSSFilter. FilterEffectRendererHelper should be weaned off it.
>     LayoutPoint m_paintOffset;
>     LayoutRect m_repaintRect;
>     const GraphicsContext& m_targetContext;
>@@ -67,71 +62,4 @@ private:
>     bool m_startedFilterEffect { false };
> };
> 
>-// This is used to render filters for the CSS filter: property, and the filter() image function.
>-class FilterEffectRenderer final : public Filter {
>-    WTF_MAKE_FAST_ALLOCATED;
>-public:
>-    friend class FilterEffectRendererHelper;
>-
>-    static Ref<FilterEffectRenderer> create();
>-
>-    void setSourceImageRect(const FloatRect&);
>-    void setFilterRegion(const FloatRect& filterRegion) { m_filterRegion = filterRegion; }
>-
>-    ImageBuffer* output() const;
>-
>-    bool build(RenderElement&, const FilterOperations&, FilterConsumer);
>-    void clearIntermediateResults();
>-    void apply();
>-
>-    bool hasFilterThatMovesPixels() const { return m_hasFilterThatMovesPixels; }
>-    bool hasFilterThatShouldBeRestrictedBySecurityOrigin() const { return m_hasFilterThatShouldBeRestrictedBySecurityOrigin; }
>-
>-private:
>-    FilterEffectRenderer();
>-    virtual ~FilterEffectRenderer();
>-
>-    FloatRect sourceImageRect() const final { return m_sourceDrawingRegion; }
>-    FloatRect filterRegion() const final { return m_filterRegion; }
>-
>-    RefPtr<FilterEffect> buildReferenceFilter(RenderElement&, FilterEffect& previousEffect, ReferenceFilterOperation&);
>-
>-    void setMaxEffectRects(const FloatRect&);
>-
>-    GraphicsContext* inputContext();
>-
>-    bool updateBackingStoreRect(const FloatRect& filterRect);
>-    void allocateBackingStoreIfNeeded(const GraphicsContext&);
>-
>-    IntRect outputRect() const;
>-
>-    LayoutRect computeSourceImageRectForDirtyRect(const LayoutRect& filterBoxRect, const LayoutRect& dirtyRect);
>-
>-    FloatRect m_sourceDrawingRegion;
>-    FloatRect m_filterRegion;
>-
>-    Vector<Ref<FilterEffect>> m_effects;
>-    Ref<SourceGraphic> m_sourceGraphic;
>-
>-    IntRectExtent m_outsets;
>-
>-    bool m_graphicsBufferAttached { false };
>-    bool m_hasFilterThatMovesPixels { false };
>-    bool m_hasFilterThatShouldBeRestrictedBySecurityOrigin { false };
>-};
>-
>-inline FilterEffectRendererHelper::FilterEffectRendererHelper(bool haveFilterEffect, GraphicsContext& targetContext)
>-    : m_targetContext(targetContext)
>-    , m_haveFilterEffect(haveFilterEffect)
>-{
>-}
>-
>-inline void FilterEffectRenderer::setSourceImageRect(const FloatRect& sourceImageRect)
>-{
>-    m_sourceDrawingRegion = sourceImageRect;
>-    setMaxEffectRects(sourceImageRect);
>-    setFilterRegion(sourceImageRect);
>-    m_graphicsBufferAttached = false;
>-}
>-
> } // namespace WebCore
>diff --git a/Source/WebCore/rendering/RenderBlockFlow.cpp b/Source/WebCore/rendering/RenderBlockFlow.cpp
>index 39a9003bd6fc3e31c46dc0d733c584afc7a9d551..1941427613e23c1e1541433632e7aeb431fb3c54 100644
>--- a/Source/WebCore/rendering/RenderBlockFlow.cpp
>+++ b/Source/WebCore/rendering/RenderBlockFlow.cpp
>@@ -35,6 +35,7 @@
> #include "HitTestLocation.h"
> #include "InlineTextBox.h"
> #include "LayoutRepainter.h"
>+#include "LayoutState.h"
> #include "Logging.h"
> #include "RenderCombineText.h"
> #include "RenderFlexibleBox.h"
>diff --git a/Source/WebCore/rendering/RenderFrame.cpp b/Source/WebCore/rendering/RenderFrame.cpp
>index 1c29155cda2cc5dcd4be35f9a19f584ad7a17928..37ccd30eac09c5c459b1969c2d701d83a2ccd194 100644
>--- a/Source/WebCore/rendering/RenderFrame.cpp
>+++ b/Source/WebCore/rendering/RenderFrame.cpp
>@@ -26,6 +26,7 @@
> 
> #include "HTMLFrameElement.h"
> #include "RenderFrameSet.h"
>+#include <wtf/IsoMallocInlines.h>
> 
> namespace WebCore {
> 
>diff --git a/Source/WebCore/rendering/RenderImage.cpp b/Source/WebCore/rendering/RenderImage.cpp
>index 6c6aafb7e4586f17d7f2708e252a13ffe22abe81..7bcfa6adf4619717d27b962939b922a5fba9740f 100644
>--- a/Source/WebCore/rendering/RenderImage.cpp
>+++ b/Source/WebCore/rendering/RenderImage.cpp
>@@ -45,6 +45,7 @@
> #include "HTMLNames.h"
> #include "HitTestResult.h"
> #include "InlineElementBox.h"
>+#include "LayoutState.h"
> #include "Page.h"
> #include "PaintInfo.h"
> #include "RenderFragmentedFlow.h"
>@@ -53,6 +54,7 @@
> #include "RenderView.h"
> #include "RuntimeEnabledFeatures.h"
> #include "SVGImage.h"
>+#include "Settings.h"
> #include <wtf/IsoMallocInlines.h>
> #include <wtf/StackStats.h>
> 
>diff --git a/Source/WebCore/rendering/RenderLayer.cpp b/Source/WebCore/rendering/RenderLayer.cpp
>index 981ab30d6947d6ee99da2ca467ef2c51be9d6fbc..8a074b42066f21e059eb19a2386415a1788b8357 100644
>--- a/Source/WebCore/rendering/RenderLayer.cpp
>+++ b/Source/WebCore/rendering/RenderLayer.cpp
>@@ -46,6 +46,7 @@
> 
> #include "BoxShape.h"
> #include "CSSAnimationController.h"
>+#include "CSSFilter.h"
> #include "CSSPropertyNames.h"
> #include "Chrome.h"
> #include "DebugPageOverlays.h"
>@@ -461,14 +462,14 @@ bool RenderLayer::requiresFullLayerImageForFilters() const
> {
>     if (!paintsWithFilters())
>         return false;
>-    auto* renderer = filterRenderer();
>-    return renderer && renderer->hasFilterThatMovesPixels();
>+    auto* cssFilter = filter();
>+    return cssFilter && cssFilter->hasFilterThatMovesPixels();
> }
> 
>-FilterEffectRenderer* RenderLayer::filterRenderer() const
>+CSSFilter* RenderLayer::filter() const
> {
>     auto* filterInfo = FilterInfo::getIfExists(*this);
>-    return filterInfo ? filterInfo->renderer() : nullptr;
>+    return filterInfo ? filterInfo->filter() : nullptr;
> }
> 
> void RenderLayer::updateLayerPositionsAfterLayout(const RenderLayer* rootLayer, OptionSet<UpdateLayerPositionsFlag> flags)
>@@ -4207,7 +4208,7 @@ std::pair<RenderLayer::FilterInfo*, std::unique_ptr<FilterEffectRendererHelper>>
>         return { };
> 
>     auto* info = FilterInfo::getIfExists(*this);
>-    if (!info || !info->renderer())
>+    if (!info || !info->filter())
>         return { };
> 
>     auto helper = std::make_unique<FilterEffectRendererHelper>(true, context);
>@@ -4253,9 +4254,9 @@ std::unique_ptr<FilterEffectRendererHelper> RenderLayer::setupFilters(GraphicsCo
>     // If the filter needs the full source image, we need to avoid using the clip rectangles.
>     // Otherwise, if for example this layer has overflow:hidden, a drop shadow will not compute correctly.
>     // Note that we will still apply the clipping on the final rendering of the filter.
>-    paintingInfo.clipToDirtyRect = !filterInfo.renderer()->hasFilterThatMovesPixels();
>+    paintingInfo.clipToDirtyRect = !filterInfo.filter()->hasFilterThatMovesPixels();
> 
>-    paintingInfo.requireSecurityOriginAccessForWidgets = filterInfo.renderer()->hasFilterThatShouldBeRestrictedBySecurityOrigin();
>+    paintingInfo.requireSecurityOriginAccessForWidgets = filterInfo.filter()->hasFilterThatShouldBeRestrictedBySecurityOrigin();
> 
>     return WTFMove(painter.second);
> }
>@@ -6882,7 +6883,7 @@ void RenderLayer::updateOrRemoveFilterEffectRenderer()
>         // Don't delete the whole filter info here, because we might use it
>         // for loading SVG reference filter files.
>         if (FilterInfo* filterInfo = FilterInfo::getIfExists(*this))
>-            filterInfo->setRenderer(nullptr);
>+            filterInfo->setFilter(nullptr);
> 
>         // Early-return only if we *don't* have reference filters.
>         // For reference filters, we still want the FilterEffect graph built
>@@ -6892,23 +6893,23 @@ void RenderLayer::updateOrRemoveFilterEffectRenderer()
>     }
>     
>     FilterInfo& filterInfo = FilterInfo::get(*this);
>-    if (!filterInfo.renderer()) {
>-        RefPtr<FilterEffectRenderer> filterRenderer = FilterEffectRenderer::create();
>-        filterRenderer->setFilterScale(page().deviceScaleFactor());
>-        filterRenderer->setRenderingMode(renderer().settings().acceleratedFiltersEnabled() ? Accelerated : Unaccelerated);
>-        filterInfo.setRenderer(WTFMove(filterRenderer));
>+    if (!filterInfo.filter()) {
>+        auto cssFilter = CSSFilter::create();
>+        cssFilter->setFilterScale(page().deviceScaleFactor());
>+        cssFilter->setRenderingMode(renderer().settings().acceleratedFiltersEnabled() ? Accelerated : Unaccelerated);
>+        filterInfo.setFilter(WTFMove(cssFilter));
>         
>         // We can optimize away code paths in other places if we know that there are no software filters.
>         renderer().view().setHasSoftwareFilters(true);
>-    } else if (filterInfo.renderer()->filterScale() != page().deviceScaleFactor()) {
>-        filterInfo.renderer()->setFilterScale(page().deviceScaleFactor());
>-        filterInfo.renderer()->clearIntermediateResults();
>+    } else if (filterInfo.filter()->filterScale() != page().deviceScaleFactor()) {
>+        filterInfo.filter()->setFilterScale(page().deviceScaleFactor());
>+        filterInfo.filter()->clearIntermediateResults();
>     }
> 
>     // If the filter fails to build, remove it from the layer. It will still attempt to
>     // go through regular processing (e.g. compositing), but never apply anything.
>-    if (!filterInfo.renderer()->build(renderer(), renderer().style().filter(), FilterProperty))
>-        filterInfo.setRenderer(nullptr);
>+    if (!filterInfo.filter()->build(renderer(), renderer().style().filter(), FilterConsumer::FilterProperty))
>+        filterInfo.setFilter(nullptr);
> }
> 
> void RenderLayer::filterNeedsRepaint()
>diff --git a/Source/WebCore/rendering/RenderLayer.h b/Source/WebCore/rendering/RenderLayer.h
>index d6fe3df1bcb03f33f2fbfcf56ca2f4f53a1b3f34..820ab45f88bd256466d6c4af2eb612448e989e2b 100644
>--- a/Source/WebCore/rendering/RenderLayer.h
>+++ b/Source/WebCore/rendering/RenderLayer.h
>@@ -60,9 +60,9 @@ class TextStream;
> 
> namespace WebCore {
> 
>+class CSSFilter;
> class ClipRects;
> class ClipRectsCache;
>-class FilterEffectRenderer;
> class FilterEffectRendererHelper;
> class FilterOperations;
> class HitTestRequest;
>@@ -679,7 +679,7 @@ public:
> 
>     bool paintsWithFilters() const;
>     bool requiresFullLayerImageForFilters() const;
>-    FilterEffectRenderer* filterRenderer() const;
>+    CSSFilter* filter() const;
> 
> #if !ASSERT_DISABLED
>     bool layerListMutationAllowed() const { return m_layerListMutationAllowed; }
>diff --git a/Source/WebCore/rendering/RenderLayerBacking.cpp b/Source/WebCore/rendering/RenderLayerBacking.cpp
>index 8bb59ea3f29b0c3f28740cb8fbc8a96716adef73..0aa00dd184e9519d5a0f11c3ad1d3bff7708b602 100644
>--- a/Source/WebCore/rendering/RenderLayerBacking.cpp
>+++ b/Source/WebCore/rendering/RenderLayerBacking.cpp
>@@ -34,7 +34,6 @@
> #include "CachedImage.h"
> #include "Chrome.h"
> #include "DocumentTimeline.h"
>-#include "FilterEffectRenderer.h"
> #include "Frame.h"
> #include "FrameView.h"
> #include "GraphicsContext.h"
>diff --git a/Source/WebCore/rendering/RenderLayerFilterInfo.cpp b/Source/WebCore/rendering/RenderLayerFilterInfo.cpp
>index 7746bd4ae08b3826a51219db76ada72702647064..ba16580fce6379063b0e41bea1399ac0dedadc8e 100644
>--- a/Source/WebCore/rendering/RenderLayerFilterInfo.cpp
>+++ b/Source/WebCore/rendering/RenderLayerFilterInfo.cpp
>@@ -84,9 +84,9 @@ RenderLayer::FilterInfo::~FilterInfo()
>     removeReferenceFilterClients();
> }
> 
>-void RenderLayer::FilterInfo::setRenderer(RefPtr<FilterEffectRenderer>&& renderer)
>+void RenderLayer::FilterInfo::setFilter(RefPtr<CSSFilter>&& filter)
> {
>-    m_renderer = renderer;
>+    m_filter = filter;
> }
> 
> void RenderLayer::FilterInfo::notifyFinished(CachedResource&)
>@@ -108,14 +108,14 @@ void RenderLayer::FilterInfo::updateReferenceFilterClients(const FilterOperation
>             m_externalSVGReferences.append(cachedSVGDocument);
>         } else {
>             // Reference is internal; add layer as a client so we can trigger filter repaint on SVG attribute change.
>-            auto* filter = m_layer.renderer().document().getElementById(referenceOperation.fragment());
>-            if (!filter)
>+            auto* filterElement = m_layer.renderer().document().getElementById(referenceOperation.fragment());
>+            if (!filterElement)
>                 continue;
>-            auto* renderer = filter->renderer();
>+            auto* renderer = filterElement->renderer();
>             if (!is<RenderSVGResourceFilter>(renderer))
>                 continue;
>             downcast<RenderSVGResourceFilter>(*renderer).addClientRenderLayer(&m_layer);
>-            m_internalSVGReferences.append(filter);
>+            m_internalSVGReferences.append(filterElement);
>         }
>     }
> }
>@@ -124,10 +124,11 @@ void RenderLayer::FilterInfo::removeReferenceFilterClients()
> {
>     for (auto& resourceHandle : m_externalSVGReferences)
>         resourceHandle->removeClient(*this);
>+
>     m_externalSVGReferences.clear();
> 
>-    for (auto& filter : m_internalSVGReferences) {
>-        if (auto* renderer = filter->renderer())
>+    for (auto& filterElement : m_internalSVGReferences) {
>+        if (auto* renderer = filterElement->renderer())
>             downcast<RenderSVGResourceContainer>(*renderer).removeClientRenderLayer(&m_layer);
>     }
>     m_internalSVGReferences.clear();
>diff --git a/Source/WebCore/rendering/RenderLayerFilterInfo.h b/Source/WebCore/rendering/RenderLayerFilterInfo.h
>index d0acd3cf5fbb12a312593c09cc1b4ac8070258cf..4782c4173821025405cff7ca39e002a8351257e4 100644
>--- a/Source/WebCore/rendering/RenderLayerFilterInfo.h
>+++ b/Source/WebCore/rendering/RenderLayerFilterInfo.h
>@@ -55,8 +55,8 @@ public:
>     void expandDirtySourceRect(const LayoutRect& rect) { m_dirtySourceRect.unite(rect); }
>     void resetDirtySourceRect() { m_dirtySourceRect = LayoutRect(); }
> 
>-    FilterEffectRenderer* renderer() const { return m_renderer.get(); }
>-    void setRenderer(RefPtr<FilterEffectRenderer>&&);
>+    CSSFilter* filter() const { return m_filter.get(); }
>+    void setFilter(RefPtr<CSSFilter>&&);
> 
>     void updateReferenceFilterClients(const FilterOperations&);
>     void removeReferenceFilterClients();
>@@ -68,7 +68,7 @@ private:
> 
>     RenderLayer& m_layer;
> 
>-    RefPtr<FilterEffectRenderer> m_renderer;
>+    RefPtr<CSSFilter> m_filter;
>     LayoutRect m_dirtySourceRect;
> 
>     Vector<RefPtr<Element>> m_internalSVGReferences;
>diff --git a/Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp b/Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp
>index 833572f2104ba1bd98a8c340ebb4c93a01586810..e5ca14ed3065fd1b564077ae8304f4474989ed1f 100644
>--- a/Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp
>+++ b/Source/WebCore/rendering/updating/RenderTreeBuilderBlock.cpp
>@@ -33,6 +33,7 @@
> #include "RenderRuby.h"
> #include "RenderRubyRun.h"
> #include "RenderTextControl.h"
>+#include "RenderTreeBuilderMultiColumn.h"
> 
> namespace WebCore {
>

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Attachments on bug 189223: 348720 | 348721 | 348722