<?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>115060</bug_id>
          
          <creation_ts>2013-04-23 14:23:06 -0700</creation_ts>
          <short_desc>Don&apos;t create compositing layers for sticky position unless using the ScrollingCoordinator</short_desc>
          <delta_ts>2013-04-23 15:00:39 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>528+ (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></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Simon Fraser (smfr)">simon.fraser</reporter>
          <assigned_to name="Simon Fraser (smfr)">simon.fraser</assigned_to>
          <cc>commit-queue</cc>
    
    <cc>dino</cc>
    
    <cc>esprehn+autocc</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>thorton</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>880125</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2013-04-23 14:23:06 -0700</bug_when>
    <thetext>Don&apos;t create compositing layers for sticky position unless using the ScrollingCoordinator</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>880128</commentid>
    <comment_count>1</comment_count>
      <attachid>199325</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2013-04-23 14:25:44 -0700</bug_when>
    <thetext>Created attachment 199325
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>880129</commentid>
    <comment_count>2</comment_count>
      <attachid>199325</attachid>
    <who name="Tim Horton">thorton</who>
    <bug_when>2013-04-23 14:28:57 -0700</bug_when>
    <thetext>Comment on attachment 199325
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=199325&amp;action=review

&gt; Source/WebCore/rendering/RenderLayerCompositor.cpp:2193
&gt; +        if (ScrollingCoordinator* scrollingCoordinator = this-&gt;scrollingCoordinator())
&gt; +            compositeSticky = scrollingCoordinator-&gt;coordinatesScrollingForFrameView(m_renderView-&gt;frameView());
&gt; +        return compositeSticky;

The same logic exists in other places (shouldCompositeOverflowControls, for one). Should we maybe factor it out?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>880147</commentid>
    <comment_count>3</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2013-04-23 15:00:39 -0700</bug_when>
    <thetext>http://trac.webkit.org/changeset/148998</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>199325</attachid>
            <date>2013-04-23 14:25:44 -0700</date>
            <delta_ts>2013-04-23 14:28:57 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-115060-20130423142508.patch</filename>
            <type>text/plain</type>
            <size>10618</size>
            <attacher name="Simon Fraser (smfr)">simon.fraser</attacher>
            
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<flag name="review"
          id="220919"
          type_id="1"
          status="+"
          setter="thorton"
    />
          </attachment>
      

    </bug>

</bugzilla>