<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>192297</bug_id>
          
          <creation_ts>2018-12-02 21:37:11 -0800</creation_ts>
          <short_desc>[LFC][BFC][MarginCollapsing] Add MarginCollapse::establishesBlockFormattingContext</short_desc>
          <delta_ts>2018-12-06 07:22:37 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Layout and Rendering</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="alan">zalan</reporter>
          <assigned_to name="alan">zalan</assigned_to>
          <cc>bfulgham</cc>
    
    <cc>koivisto</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>zalan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1484257</commentid>
    <comment_count>0</comment_count>
    <who name="alan">zalan</who>
    <bug_when>2018-12-02 21:37:11 -0800</bug_when>
    <thetext>too deal with WebKit quirk</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1484258</commentid>
    <comment_count>1</comment_count>
      <attachid>356355</attachid>
    <who name="alan">zalan</who>
    <bug_when>2018-12-02 21:41:45 -0800</bug_when>
    <thetext>Created attachment 356355
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1485690</commentid>
    <comment_count>2</comment_count>
    <who name="alan">zalan</who>
    <bug_when>2018-12-06 07:21:56 -0800</bug_when>
    <thetext>Committed r238930: &lt;https://trac.webkit.org/changeset/238930&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1485691</commentid>
    <comment_count>3</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2018-12-06 07:22:37 -0800</bug_when>
    <thetext>&lt;rdar://problem/46523099&gt;</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>356355</attachid>
            <date>2018-12-02 21:41:45 -0800</date>
            <delta_ts>2018-12-05 08:28:29 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-192297-20181202214137.patch</filename>
            <type>text/plain</type>
            <size>3735</size>
            <attacher name="alan">zalan</attacher>
            
              <data encoding="base64">U3VidmVyc2lvbiBSZXZpc2lvbjogMjM4NzkxCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D
aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZDFhYzU2ZmY0YWMwMWFj
ZDE1MTk2NDI4YjY1MTYyMDU0ZjBiYjhiOS4uNmQ5ZWVmNjk3MjQ0NjUxMTg0NzdjMzM2OTg3NmNm
MzA5MWNjMzlhNSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv
dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE3IEBACisyMDE4LTEyLTAyICBaYWxh
biBCdWp0YXMgIDx6YWxhbkBhcHBsZS5jb20+CisKKyAgICAgICAgW0xGQ11bQkZDXVtNYXJnaW5D
b2xsYXBzaW5nXSBBZGQgTWFyZ2luQ29sbGFwc2U6OmVzdGFibGlzaGVzQmxvY2tGb3JtYXR0aW5n
Q29udGV4dAorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9
MTkyMjk3CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAg
V2ViS2l0IHRyZWF0cyB0aGUgZG9jdW1lbnQgZWxlbWVudCByZW5kZXJlciBhcyBhIGJsb2NrIGZv
cm1hdHRpbmcgY29udGV4dCByb290LiAKKworICAgICAgICAqIGxheW91dC9ibG9ja2Zvcm1hdHRp
bmcvQmxvY2tNYXJnaW5Db2xsYXBzZS5jcHA6CisgICAgICAgIChXZWJDb3JlOjpMYXlvdXQ6OmVz
dGFibGlzaGVzQmxvY2tGb3JtYXR0aW5nQ29udGV4dCk6CisgICAgICAgIChXZWJDb3JlOjpMYXlv
dXQ6OkJsb2NrRm9ybWF0dGluZ0NvbnRleHQ6Okdlb21ldHJ5OjpNYXJnaW5Db2xsYXBzZTo6aXNN
YXJnaW5Ub3BDb2xsYXBzZWRXaXRoUGFyZW50KToKKyAgICAgICAgKFdlYkNvcmU6OkxheW91dDo6
QmxvY2tGb3JtYXR0aW5nQ29udGV4dDo6R2VvbWV0cnk6Ok1hcmdpbkNvbGxhcHNlOjppc01hcmdp
bkJvdHRvbUNvbGxhcHNlZFdpdGhQYXJlbnQpOgorCiAyMDE4LTEyLTAyICBaYWxhbiBCdWp0YXMg
IDx6YWxhbkBhcHBsZS5jb20+CiAKICAgICAgICAgQWRkIGEgcnVudGltZSBmZWF0dXJlIGZsYWcg
Zm9yIExheW91dEZvcm1hdHRpbmdDb250ZXh0LgpkaWZmIC0tZ2l0IGEvU291cmNlL1dlYkNvcmUv
bGF5b3V0L2Jsb2NrZm9ybWF0dGluZy9CbG9ja01hcmdpbkNvbGxhcHNlLmNwcCBiL1NvdXJjZS9X
ZWJDb3JlL2xheW91dC9ibG9ja2Zvcm1hdHRpbmcvQmxvY2tNYXJnaW5Db2xsYXBzZS5jcHAKaW5k
ZXggZWI3OTNiM2NkNGYwNmRiZWU1OTdkYThiNDQ1YjY3OTAzZDQwN2MyMS4uYmYxYTA4Y2NiNjU5
ZTU3MzU5MzdjNzZlODIyZTg3ZGJhODg5ZTQ4NiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUv
bGF5b3V0L2Jsb2NrZm9ybWF0dGluZy9CbG9ja01hcmdpbkNvbGxhcHNlLmNwcAorKysgYi9Tb3Vy
Y2UvV2ViQ29yZS9sYXlvdXQvYmxvY2tmb3JtYXR0aW5nL0Jsb2NrTWFyZ2luQ29sbGFwc2UuY3Bw
CkBAIC02OSw2ICs2OSwxNSBAQCBzdGF0aWMgYm9vbCBoYXNQYWRkaW5nQWZ0ZXIoY29uc3QgQm94
JiBsYXlvdXRCb3gpCiAgICAgcmV0dXJuIGhhc1BhZGRpbmcobGF5b3V0Qm94LnN0eWxlKCkucGFk
ZGluZ0FmdGVyKCkpOwogfQogCitzdGF0aWMgYm9vbCBlc3RhYmxpc2hlc0Jsb2NrRm9ybWF0dGlu
Z0NvbnRleHQoY29uc3QgQm94JiBsYXlvdXRCb3gpCit7CisgICAgLy8gV2ViS2l0IHRyZWF0cyB0
aGUgZG9jdW1lbnQgZWxlbWVudCByZW5kZXJlciBhcyBhIGJsb2NrIGZvcm1hdHRpbmcgY29udGV4
dCByb290LiBJdCBwcm9iYWJseSBvbmx5IGltcGFjdHMgbWFyZ2luIGNvbGxhcHNpbmcsIHNvIGxl
dCdzIG5vdCBkbworICAgIC8vIGEgbGF5b3V0IHdpZGUgcXVpcmsgb24gdGhpcyBmb3Igbm93Lgor
ICAgIGlmIChsYXlvdXRCb3guaXNEb2N1bWVudEJveCgpKQorICAgICAgICByZXR1cm4gdHJ1ZTsK
KyAgICByZXR1cm4gbGF5b3V0Qm94LmVzdGFibGlzaGVzQmxvY2tGb3JtYXR0aW5nQ29udGV4dCgp
OworfQorCiBzdGF0aWMgTGF5b3V0VW5pdCBtYXJnaW5WYWx1ZShMYXlvdXRVbml0IGN1cnJlbnRN
YXJnaW5WYWx1ZSwgTGF5b3V0VW5pdCBjYW5kaWRhdGVNYXJnaW5WYWx1ZSkKIHsKICAgICBpZiAo
IWNhbmRpZGF0ZU1hcmdpblZhbHVlKQpAQCAtMTMxLDE0ICsxNDAsOSBAQCBib29sIEJsb2NrRm9y
bWF0dGluZ0NvbnRleHQ6Okdlb21ldHJ5OjpNYXJnaW5Db2xsYXBzZTo6aXNNYXJnaW5Ub3BDb2xs
YXBzZWRXaXRoUAogICAgIGlmIChsYXlvdXRCb3gucHJldmlvdXNJbkZsb3dTaWJsaW5nKCkpCiAg
ICAgICAgIHJldHVybiBmYWxzZTsKIAotICAgIC8vIFdlIG5ldmVyIG1hcmdpbiBjb2xsYXBzZSB0
aGUgaW5pdGlhbCBjb250YWluaW5nIGJsb2NrLgotICAgIEFTU0VSVChsYXlvdXRCb3gucGFyZW50
KCkpOwogICAgIGF1dG8mIHBhcmVudCA9ICpsYXlvdXRCb3gucGFyZW50KCk7Ci0gICAgaWYgKHBh
cmVudC5lc3RhYmxpc2hlc0Jsb2NrRm9ybWF0dGluZ0NvbnRleHQoKSkKLSAgICAgICAgcmV0dXJu
IGZhbHNlOwotCi0gICAgLy8gTWFyZ2lucyBvZiB0aGUgcm9vdCBlbGVtZW50J3MgYm94IGRvIG5v
dCBjb2xsYXBzZS4KLSAgICBpZiAocGFyZW50LmlzRG9jdW1lbnRCb3goKSB8fCBwYXJlbnQuaXNJ
bml0aWFsQ29udGFpbmluZ0Jsb2NrKCkpCisgICAgLy8gTWFyZ2lucyBvZiBlbGVtZW50cyB0aGF0
IGVzdGFibGlzaCBuZXcgYmxvY2sgZm9ybWF0dGluZyBjb250ZXh0cyBkbyBub3QgY29sbGFwc2Ug
d2l0aCB0aGVpciBpbi1mbG93IGNoaWxkcmVuCisgICAgaWYgKGVzdGFibGlzaGVzQmxvY2tGb3Jt
YXR0aW5nQ29udGV4dChwYXJlbnQpKQogICAgICAgICByZXR1cm4gZmFsc2U7CiAKICAgICBpZiAo
aGFzQm9yZGVyQmVmb3JlKHBhcmVudCkpCkBAIC0zMDgsMTggKzMxMiwxMyBAQCBib29sIEJsb2Nr
Rm9ybWF0dGluZ0NvbnRleHQ6Okdlb21ldHJ5OjpNYXJnaW5Db2xsYXBzZTo6aXNNYXJnaW5Cb3R0
b21Db2xsYXBzZWRXaQogICAgIGlmIChpc01hcmdpbkJvdHRvbUNvbGxhcHNlZFRocm91Z2gobGF5
b3V0Qm94KSkKICAgICAgICAgcmV0dXJuIGZhbHNlOwogCi0gICAgLy8gV2UgbmV2ZXIgbWFyZ2lu
IGNvbGxhcHNlIHRoZSBpbml0aWFsIGNvbnRhaW5pbmcgYmxvY2suCi0gICAgQVNTRVJUKGxheW91
dEJveC5wYXJlbnQoKSk7Ci0gICAgYXV0byYgcGFyZW50ID0gKmxheW91dEJveC5wYXJlbnQoKTsK
ICAgICAvLyBPbmx5IHRoZSBsYXN0IGlubGZsb3cgY2hpbGQgY29sbGFwc2VzIHdpdGggcGFyZW50
LgogICAgIGlmIChsYXlvdXRCb3gubmV4dEluRmxvd1NpYmxpbmcoKSkKICAgICAgICAgcmV0dXJu
IGZhbHNlOwogCi0gICAgaWYgKHBhcmVudC5lc3RhYmxpc2hlc0Jsb2NrRm9ybWF0dGluZ0NvbnRl
eHQoKSkKLSAgICAgICAgcmV0dXJuIGZhbHNlOwotCi0gICAgLy8gTWFyZ2lucyBvZiB0aGUgcm9v
dCBlbGVtZW50J3MgYm94IGRvIG5vdCBjb2xsYXBzZS4KLSAgICBpZiAocGFyZW50LmlzRG9jdW1l
bnRCb3goKSB8fCBwYXJlbnQuaXNJbml0aWFsQ29udGFpbmluZ0Jsb2NrKCkpCisgICAgYXV0byYg
cGFyZW50ID0gKmxheW91dEJveC5wYXJlbnQoKTsKKyAgICAvLyBNYXJnaW5zIG9mIGVsZW1lbnRz
IHRoYXQgZXN0YWJsaXNoIG5ldyBibG9jayBmb3JtYXR0aW5nIGNvbnRleHRzIGRvIG5vdCBjb2xs
YXBzZSB3aXRoIHRoZWlyIGluLWZsb3cgY2hpbGRyZW4KKyAgICBpZiAoZXN0YWJsaXNoZXNCbG9j
a0Zvcm1hdHRpbmdDb250ZXh0KHBhcmVudCkpCiAgICAgICAgIHJldHVybiBmYWxzZTsKIAogICAg
IGlmIChoYXNCb3JkZXJCZWZvcmUocGFyZW50KSkK
</data>
<flag name="review"
          id="373345"
          type_id="1"
          status="+"
          setter="koivisto"
    />
          </attachment>
      

    </bug>

</bugzilla>