Attachment 346232 Details for Bug 187108 – Patch

[patch] Patch

bug-187108-20180731171256.patch (text/plain), 21.23 KB, created by Ben Richards on 2018-07-31 17:12:57 PDT

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Creator: Ben Richards

Created: 2018-07-31 17:12:57 PDT

Size: 21.23 KB

patch

obsolete

>Subversion Revision: 234439
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 713ea7341df292025245b0a6b3a5e84829e0d24c..7077e67b8c5bdf46a9fc2165a95a1b148a2f3352 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,33 @@
>+2018-07-31  Ben Richards  <benton_richards@apple.com>
>+
>+        Add configuration for automatic process pre-warming
>+        https://bugs.webkit.org/show_bug.cgi?id=187108
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added configurations to allow setting the maximum number of processes that should be automatically prewarmed.
>+
>+        * UIProcess/API/APIProcessPoolConfiguration.cpp:
>+        (API::ProcessPoolConfiguration::copy):
>+        * UIProcess/API/APIProcessPoolConfiguration.h:
>+        * UIProcess/API/C/WKContext.cpp:
>+        (WKContextSetMaximumNumberOfPrewarmedProcesses):
>+        * UIProcess/API/C/WKContextPrivate.h:
>+        * UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h:
>+        * UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm:
>+        (-[_WKProcessPoolConfiguration setMaximumPrewarmedProcessCount:]):
>+        (-[_WKProcessPoolConfiguration maximumPrewarmedProcessCount]):
>+        * UIProcess/WebPageProxy.cpp:
>+        (WebKit::WebPageProxy::didFinishLoadForFrame): Moved call to notifyProcessPoolToPrewarm from didFirstVisuallyNonEmptyLayoutForFrame to here.
>+        This is to try to ensure that frame loading and prewarming don't happen at the same time as this would be heavy for some devices.
>+        (WebKit::WebPageProxy::didFirstVisuallyNonEmptyLayoutForFrame):
>+        * UIProcess/WebProcessPool.cpp:
>+        (WebKit::WebProcessPool::setMaximumNumberOfProcesses):
>+        (WebKit::WebProcessPool::setMaximumNumberOfPrewarmedProcesses):
>+        (WebKit::WebProcessPool::warmInitialProcess):
>+        (WebKit::WebProcessPool::didReachGoodTimeToPrewarm):
>+        * UIProcess/WebProcessPool.h:
>+
> 2018-07-31  Rob Buis  <rbuis@igalia.com>
> 
>         Remove ResourceResponse::cacheBodyKey API
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>index ec77348d4df2de27186d9f7fb598670cd8947473..8348e7c08a9dbb7290b35d3ed7d9d16464e77bbe 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>@@ -98,6 +98,7 @@ Ref<ProcessPoolConfiguration> ProcessPoolConfiguration::copy()
> 
>     copy->m_shouldHaveLegacyDataStore = this->m_shouldHaveLegacyDataStore;
>     copy->m_maximumProcessCount = this->m_maximumProcessCount;
>+    copy->m_maximumPrewarmedProcessCount = this->m_maximumPrewarmedProcessCount;
>     copy->m_cacheModel = this->m_cacheModel;
>     copy->m_diskCacheDirectory = this->m_diskCacheDirectory;
>     copy->m_diskCacheSpeculativeValidationEnabled = this->m_diskCacheSpeculativeValidationEnabled;
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>index 053e91be2916875adb40937d025be94fe997af8c..de0a1792e13ce2f11fb244b73fd9c8d72ccbedb9 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>@@ -51,8 +51,11 @@ public:
>     void setShouldHaveLegacyDataStore(bool shouldHaveLegacyDataStore) { m_shouldHaveLegacyDataStore = shouldHaveLegacyDataStore; }
> 
>     unsigned maximumProcessCount() const { return m_maximumProcessCount; }
>-    void setMaximumProcessCount(unsigned maximumProcessCount) { m_maximumProcessCount = maximumProcessCount; } 
>+    void setMaximumProcessCount(unsigned maximumProcessCount) { m_maximumProcessCount = maximumProcessCount; }
> 
>+    unsigned maximumPrewarmedProcessCount() const { return m_maximumPrewarmedProcessCount; }
>+    void setMaximumPrewarmedProcessCount(unsigned maximumPrewarmedProcessCount) { m_maximumPrewarmedProcessCount = maximumPrewarmedProcessCount; }
>+    
>     bool diskCacheSpeculativeValidationEnabled() const { return m_diskCacheSpeculativeValidationEnabled; }
>     void setDiskCacheSpeculativeValidationEnabled(bool enabled) { m_diskCacheSpeculativeValidationEnabled = enabled; }
> 
>@@ -158,6 +161,7 @@ private:
>     bool m_shouldHaveLegacyDataStore { false };
> 
>     unsigned m_maximumProcessCount { 0 };
>+    unsigned m_maximumPrewarmedProcessCount { 0 };
>     bool m_diskCacheSpeculativeValidationEnabled { false };
>     WebKit::CacheModel m_cacheModel { WebKit::CacheModelPrimaryWebBrowser };
>     int64_t m_diskCacheSizeOverride { -1 };
>diff --git a/Source/WebKit/UIProcess/API/C/WKContext.cpp b/Source/WebKit/UIProcess/API/C/WKContext.cpp
>index 8e20ee6786192f1edd970bc951cdfda4f51fdf34..4fca7eedb2f5882ec64094c7396351682c0fad31 100644
>--- a/Source/WebKit/UIProcess/API/C/WKContext.cpp
>+++ b/Source/WebKit/UIProcess/API/C/WKContext.cpp
>@@ -402,6 +402,11 @@ void WKContextSetCanHandleHTTPSServerTrustEvaluation(WKContextRef contextRef, bo
>     toImpl(contextRef)->setCanHandleHTTPSServerTrustEvaluation(value);
> }
> 
>+void WKContextSetMaximumNumberOfPrewarmedProcesses(WKContextRef contextRef, unsigned value)
>+{
>+    toImpl(contextRef)->setMaximumNumberOfPrewarmedProcesses(value);
>+}
>+
> void WKContextSetDiskCacheSpeculativeValidationEnabled(WKContextRef contextRef, bool value)
> {
>     toImpl(contextRef)->configuration().setDiskCacheSpeculativeValidationEnabled(value);
>diff --git a/Source/WebKit/UIProcess/API/C/WKContextPrivate.h b/Source/WebKit/UIProcess/API/C/WKContextPrivate.h
>index f08a43187cc2ee48e8cbabe4ad4c58f6fb730b99..218d0380e32fbbffc226b6d0a28f881d26468028 100644
>--- a/Source/WebKit/UIProcess/API/C/WKContextPrivate.h
>+++ b/Source/WebKit/UIProcess/API/C/WKContextPrivate.h
>@@ -68,6 +68,8 @@ WK_EXPORT void WKContextRegisterURLSchemeAsCanDisplayOnlyIfCanRequest(WKContextR
> WK_EXPORT void WKContextSetDomainRelaxationForbiddenForURLScheme(WKContextRef context, WKStringRef urlScheme);
> 
> WK_EXPORT void WKContextSetCanHandleHTTPSServerTrustEvaluation(WKContextRef context, bool value);
>+    
>+WK_EXPORT void WKContextSetMaximumNumberOfPrewarmedProcesses(WKContextRef context, unsigned count);
> 
> WK_EXPORT void WKContextSetDiskCacheSpeculativeValidationEnabled(WKContextRef context, bool value);
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>index cfab13af7a02de3b89a5afdfc83d4fd0816d3489..92e1cf26b92c33d11038413d9bc49c3b50e65c5a 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>@@ -35,6 +35,7 @@ WK_CLASS_AVAILABLE(macosx(10.10), ios(8.0))
> 
> @property (nonatomic, copy) NSURL *injectedBundleURL;
> @property (nonatomic) NSUInteger maximumProcessCount;
>+@property (nonatomic) NSInteger maximumPrewarmedProcessCount;
> 
> @property (nonatomic) BOOL ignoreSynchronousMessagingTimeoutsForTesting WK_API_AVAILABLE(macosx(10.12), ios(10.0));
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>index 75c8b18d246608e7c152cb25b2ad9eabcb9be9a5..e2166df5732e316076c09476cff768d05f9f77a6 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>@@ -249,6 +249,16 @@
>     return _processPoolConfiguration->processSwapsOnNavigation();
> }
> 
>+- (void)setMaximumPrewarmedProcessCount:(NSInteger)count
>+{
>+    _processPoolConfiguration->setMaximumPrewarmedProcessCount(count);
>+}
>+
>+- (NSInteger)maximumPrewarmedProcessCount
>+{
>+    return _processPoolConfiguration->maximumPrewarmedProcessCount();
>+}
>+
> - (void)setAlwaysKeepAndReuseSwappedProcesses:(BOOL)swaps
> {
>     _processPoolConfiguration->setAlwaysKeepAndReuseSwappedProcesses(swaps);
>diff --git a/Source/WebKit/UIProcess/WebPageProxy.cpp b/Source/WebKit/UIProcess/WebPageProxy.cpp
>index cc5786faae20d1e1d5473f7b514e35a211dae795..c898c8769cf52975e0c6fc0eff258bf7ed925689 100644
>--- a/Source/WebKit/UIProcess/WebPageProxy.cpp
>+++ b/Source/WebKit/UIProcess/WebPageProxy.cpp
>@@ -3781,6 +3781,8 @@ void WebPageProxy::didFinishLoadForFrame(uint64_t frameID, uint64_t navigationID
>         m_pageClient.didFinishLoadForMainFrame();
> 
>         resetRecentCrashCountSoon();
>+        
>+        notifyProcessPoolToPrewarm();
>     }
> 
>     m_isLoadingAlternateHTMLStringForFailingProvisionalLoad = false;
>@@ -3920,10 +3922,8 @@ void WebPageProxy::didFirstVisuallyNonEmptyLayoutForFrame(uint64_t frameID, cons
> 
>     m_loaderClient->didFirstVisuallyNonEmptyLayoutForFrame(*this, *frame, m_process->transformHandlesToObjects(userData.object()).get());
> 
>-    if (frame->isMainFrame()) {
>+    if (frame->isMainFrame())
>         m_pageClient.didFirstVisuallyNonEmptyLayoutForMainFrame();
>-        notifyProcessPoolToPrewarm();
>-    }
> }
> 
> void WebPageProxy::didLayoutForCustomContentProvider()
>diff --git a/Source/WebKit/UIProcess/WebProcessPool.cpp b/Source/WebKit/UIProcess/WebProcessPool.cpp
>index f2159ce1c0a5c5b895cac1813da4a0e015d0d514..b2fa44359c4f078c20eecb731d13325915f76a5e 100644
>--- a/Source/WebKit/UIProcess/WebProcessPool.cpp
>+++ b/Source/WebKit/UIProcess/WebProcessPool.cpp
>@@ -403,11 +403,20 @@ void WebProcessPool::setLegacyCustomProtocolManagerClient(std::unique_ptr<API::C
> void WebProcessPool::setMaximumNumberOfProcesses(unsigned maximumNumberOfProcesses)
> {
>     // Guard against API misuse.
>-    if (!m_processes.isEmpty())
>+    if (m_processes.size() != m_prewarmedProcessCount)
>         CRASH();
> 
>     m_configuration->setMaximumProcessCount(maximumNumberOfProcesses);
> }
>+    
>+void WebProcessPool::setMaximumNumberOfPrewarmedProcesses(unsigned maximumNumberOfProcesses)
>+{
>+    // Guard against API misuse.
>+    if (m_processes.size())
>+        CRASH();
>+
>+    m_configuration->setMaximumPrewarmedProcessCount(maximumNumberOfProcesses);
>+}
> 
> IPC::Connection* WebProcessPool::networkingProcessConnection()
> {
>@@ -993,7 +1002,7 @@ void WebProcessPool::initializeNewWebProcess(WebProcessProxy& process, WebsiteDa
> 
> void WebProcessPool::warmInitialProcess()
> {
>-    if (m_prewarmedProcessCount) {
>+    if (m_prewarmedProcessCount >= maximumNumberOfPrewarmedProcesses()) {
>         ASSERT(!m_processes.isEmpty());
>         return;
>     }
>@@ -1309,12 +1318,11 @@ void WebProcessPool::postMessageToInjectedBundle(const String& messageName, API:
> 
> void WebProcessPool::didReachGoodTimeToPrewarm()
> {
>-    if (!m_configuration->processSwapsOnNavigation())
>-        return;
>     if (!m_websiteDataStore)
>         m_websiteDataStore = API::WebsiteDataStore::defaultDataStore().ptr();
>-    static constexpr size_t maxPrewarmCount = 1;
>-    while (m_prewarmedProcessCount < maxPrewarmCount)
>+    
>+    unsigned maxPrewarmed = maximumNumberOfPrewarmedProcesses();
>+    while (m_prewarmedProcessCount < maxPrewarmed)
>         createNewWebProcess(m_websiteDataStore->websiteDataStore(), WebProcessProxy::IsInPrewarmedPool::Yes);
> }
> 
>diff --git a/Source/WebKit/UIProcess/WebProcessPool.h b/Source/WebKit/UIProcess/WebProcessPool.h
>index 9d7a99ff500b392a1f9ad22692d5ed28b98aa7e2..5494be2df94e116649c105d7aa63b16938f04fcb 100644
>--- a/Source/WebKit/UIProcess/WebProcessPool.h
>+++ b/Source/WebKit/UIProcess/WebProcessPool.h
>@@ -155,6 +155,9 @@ public:
> 
>     void setMaximumNumberOfProcesses(unsigned); // Can only be called when there are no processes running.
>     unsigned maximumNumberOfProcesses() const { return !m_configuration->maximumProcessCount() ? UINT_MAX : m_configuration->maximumProcessCount(); }
>+    
>+    void setMaximumNumberOfPrewarmedProcesses(unsigned); // Can only be called when there are no processes running.
>+    unsigned maximumNumberOfPrewarmedProcesses() const { return m_configuration->maximumPrewarmedProcessCount(); }
> 
>     const Vector<RefPtr<WebProcessProxy>>& processes() const { return m_processes; }
> 
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index b5f378d2c7a47943b66a5def6a00924e9dca66a4..496bc083b1a650b6b661ca4a7da1b9e249337468 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,17 @@
>+2018-07-31  Ben Richards  <benton_richards@apple.com>
>+
>+        Add configuration for automatic process pre-warming
>+        https://bugs.webkit.org/show_bug.cgi?id=187108
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added new test case for setting maximum prewarmed process count and updated test case for process swap on navigation to set the maximum prewarmed process count to be 1 where relevant.
>+
>+        * TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
>+        * TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm:
>+        * TestWebKitAPI/Tests/WebKitCocoa/SetMaximumPrewarmedProcessCount.mm: Added.
>+        (TEST):
>+
> 2018-07-31  Alex Christensen  <achristensen@webkit.org>
> 
>         Build fix.  Remove unused variable.
>diff --git a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>index ac532418009ad463f111939c8ce1bfdb8079284f..02ae00c303071a02032d9d9000d2cb5a9c78529c 100644
>--- a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>+++ b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>@@ -154,6 +154,7 @@
> 		3FCC4FE81EC4E8CA0076E37C /* PictureInPictureDelegate.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = 3FCC4FE61EC4E87E0076E37C /* PictureInPictureDelegate.html */; };
> 		4135FB842011FAA700332139 /* InjectInternals_Bundle.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4135FB832011FAA300332139 /* InjectInternals_Bundle.cpp */; };
> 		4135FB852011FABF00332139 /* libWebCoreTestSupport.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = 4135FB862011FABF00332139 /* libWebCoreTestSupport.dylib */; };
>+		41882F0321010C0D002FF288 /* SetMaximumPrewarmedProcessCount.mm in Sources */ = {isa = PBXBuildFile; fileRef = 41882F0221010A70002FF288 /* SetMaximumPrewarmedProcessCount.mm */; };
> 		4433A396208044140091ED57 /* SynchronousTimeoutTests.mm in Sources */ = {isa = PBXBuildFile; fileRef = 4433A395208044130091ED57 /* SynchronousTimeoutTests.mm */; };
> 		44817A2F1F0486BF00003810 /* WKRequestActivatedElementInfo.mm in Sources */ = {isa = PBXBuildFile; fileRef = 44817A2E1F0486BF00003810 /* WKRequestActivatedElementInfo.mm */; };
> 		448D7E471EA6C55500ECC756 /* EnvironmentUtilitiesTest.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 448D7E451EA6C55500ECC756 /* EnvironmentUtilitiesTest.cpp */; };
>@@ -1391,6 +1392,7 @@
> 		3FCC4FE61EC4E87E0076E37C /* PictureInPictureDelegate.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; path = PictureInPictureDelegate.html; sourceTree = "<group>"; };
> 		4135FB832011FAA300332139 /* InjectInternals_Bundle.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = InjectInternals_Bundle.cpp; path = Tests/InjectInternals_Bundle.cpp; sourceTree = SOURCE_ROOT; };
> 		4135FB862011FABF00332139 /* libWebCoreTestSupport.dylib */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.dylib"; path = libWebCoreTestSupport.dylib; sourceTree = BUILT_PRODUCTS_DIR; };
>+		41882F0221010A70002FF288 /* SetMaximumPrewarmedProcessCount.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = SetMaximumPrewarmedProcessCount.mm; sourceTree = "<group>"; };
> 		41973B5A1AF2286A006C7B36 /* FileSystem.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = FileSystem.cpp; sourceTree = "<group>"; };
> 		41973B5C1AF22875006C7B36 /* SharedBuffer.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = SharedBuffer.cpp; sourceTree = "<group>"; };
> 		440A1D3814A0103A008A66F2 /* URL.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = URL.cpp; sourceTree = "<group>"; };
>@@ -2335,6 +2337,7 @@
> 				F4D2986D20FEE7370092D636 /* RunScriptAfterDocumentLoad.mm */,
> 				CE0947362063223B003C9BA0 /* SchemeRegistry.mm */,
> 				51EB12931FDF050500A5A1BD /* ServiceWorkerBasic.mm */,
>+				41882F0221010A70002FF288 /* SetMaximumPrewarmedProcessCount.mm */,
> 				37BCA61B1B596BA9002012CA /* ShouldOpenExternalURLsInNewWindowActions.mm */,
> 				2D9A53AE1B31FA8D0074D5AA /* ShrinkToFit.mm */,
> 				2DFF7B6C1DA487AF00814614 /* SnapshotStore.mm */,
>@@ -3863,6 +3866,7 @@
> 				51EB12941FDF052500A5A1BD /* ServiceWorkerBasic.mm in Sources */,
> 				7CCE7ECB1A411A7E00447C4C /* SetAndUpdateCacheModel.mm in Sources */,
> 				7CCE7ECC1A411A7E00447C4C /* SetDocumentURI.mm in Sources */,
>+				41882F0321010C0D002FF288 /* SetMaximumPrewarmedProcessCount.mm in Sources */,
> 				CE6E81A020A6935F00E2C80F /* SetTimeoutFunction.mm in Sources */,
> 				7C83E0521D0A641800FEBCF3 /* SharedBuffer.cpp in Sources */,
> 				A17991881E1C994E00A505ED /* SharedBuffer.mm in Sources */,
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm
>index ef4f85c2f9dd203d36487c338741d8d34aea2c96..aa0dab253d8201c74e38d98e26feec1af3ae3e7f 100644
>--- a/Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/ProcessSwapOnNavigation.mm
>@@ -282,6 +282,7 @@ TEST(ProcessSwap, Basic)
> {
>     auto processPoolConfiguration = adoptNS([[_WKProcessPoolConfiguration alloc] init]);
>     processPoolConfiguration.get().processSwapsOnNavigation = YES;
>+    processPoolConfiguration.get().maximumPrewarmedProcessCount = 1;
>     auto processPool = adoptNS([[WKProcessPool alloc] _initWithConfiguration:processPoolConfiguration.get()]);
> 
>     auto webViewConfiguration = adoptNS([[WKWebViewConfiguration alloc] init]);
>@@ -900,6 +901,7 @@ TEST(ProcessSwap, NumberOfPrewarmedProcesses)
> {
>     auto processPoolConfiguration = adoptNS([[_WKProcessPoolConfiguration alloc] init]);
>     [processPoolConfiguration setProcessSwapsOnNavigation:YES];
>+    [processPoolConfiguration setMaximumPrewarmedProcessCount:1];
>     auto processPool = adoptNS([[WKProcessPool alloc] _initWithConfiguration:processPoolConfiguration.get()]);
> 
>     auto webViewConfiguration = adoptNS([[WKWebViewConfiguration alloc] init]);
>@@ -1090,7 +1092,7 @@ TEST(ProcessSwap, DisableForInspector)
>     auto webViewConfiguration = adoptNS([[WKWebViewConfiguration alloc] init]);
>     [webViewConfiguration setProcessPool:processPool.get()];
>     webViewConfiguration.get().preferences._developerExtrasEnabled = YES;
>-    
>+
>     RetainPtr<PSONScheme> handler = adoptNS([[PSONScheme alloc] init]);
>     [webViewConfiguration setURLSchemeHandler:handler.get() forURLScheme:@"PSON1"];
>     [webViewConfiguration setURLSchemeHandler:handler.get() forURLScheme:@"PSON2"];
>@@ -1475,7 +1477,7 @@ TEST(ProcessSwap, APIControlledProcessSwapping)
>     TestWebKitAPI::Util::run(&done);
>     done = false;
>     auto pid3 = [webView _webProcessIdentifier];
>-    
>+
>     EXPECT_EQ(3, numberOfDecidePolicyCalls);
>     EXPECT_EQ(2u, seenPIDs.size());
>     EXPECT_NE(pid1, pid3);
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/SetMaximumPrewarmedProcessCount.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/SetMaximumPrewarmedProcessCount.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..6c67591ef1602d263f0876f7dab64e39101bbad7
>--- /dev/null
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/SetMaximumPrewarmedProcessCount.mm
>@@ -0,0 +1,57 @@
>+/*
>+ * Copyright (C) 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. AND ITS CONTRIBUTORS ``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 ITS 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.
>+ */
>+
>+#import "config.h"
>+
>+#import "PlatformUtilities.h"
>+#import "Test.h"
>+#import <WebKit/WKProcessPoolPrivate.h>
>+#import <WebKit/_WKProcessPoolConfiguration.h>
>+#import <wtf/RetainPtr.h>
>+
>+#if WK_API_ENABLED
>+
>+TEST(WKProcessPool, SetMaximumPrewarmedProcessCount)
>+{
>+    auto processPoolConfiguration = adoptNS([[_WKProcessPoolConfiguration alloc] init]);
>+    [processPoolConfiguration setMaximumPrewarmedProcessCount:2];
>+    auto processPool = adoptNS([[WKProcessPool alloc] _initWithConfiguration:processPoolConfiguration.get()]);
>+
>+    EXPECT_EQ(0u, [processPool _prewarmedWebProcessCount]);
>+
>+    [processPool _warmInitialProcess];
>+
>+    EXPECT_EQ(1u, [processPool _prewarmedWebProcessCount]);
>+
>+    [processPool _warmInitialProcess];
>+
>+    EXPECT_EQ(2u, [processPool _prewarmedWebProcessCount]);
>+
>+    [processPool _warmInitialProcess];
>+
>+    EXPECT_EQ(2u, [processPool _prewarmedWebProcessCount]);
>+}
>+
>+#endif

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Attachments on bug 187108: 343876 | 343883 | 343884 | 343893 | 343967 | 343999 | 344157 | 344216 | 344259 | 345050 | 345386 | 345397 | 346231 | 346232 | 346239 | 346447 | 346448 | 346457 | 346459 | 346493 | 346496 | 346497