<?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>79165</bug_id>
          
          <creation_ts>2012-02-21 16:34:02 -0800</creation_ts>
          <short_desc>Enable ScrollingCoordinator in chromium whenever compositing is enabled</short_desc>
          <delta_ts>2012-02-21 17:04:03 -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>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="James Robinson">jamesr</reporter>
          <assigned_to name="James Robinson">jamesr</assigned_to>
          <cc>abarth</cc>
    
    <cc>andersca</cc>
    
    <cc>enne</cc>
    
    <cc>fishd</cc>
    
    <cc>nduca</cc>
    
    <cc>skyostil</cc>
    
    <cc>vangelis</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>561364</commentid>
    <comment_count>0</comment_count>
    <who name="James Robinson">jamesr</who>
    <bug_when>2012-02-21 16:34:02 -0800</bug_when>
    <thetext>Enable ScrollingCoordinator in chromium whenever compositing is enabled</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>561366</commentid>
    <comment_count>1</comment_count>
      <attachid>128081</attachid>
    <who name="James Robinson">jamesr</who>
    <bug_when>2012-02-21 16:38:01 -0800</bug_when>
    <thetext>Created attachment 128081
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>561371</commentid>
    <comment_count>2</comment_count>
    <who name="James Robinson">jamesr</who>
    <bug_when>2012-02-21 16:41:49 -0800</bug_when>
    <thetext>This is mostly a Chromium-specific change, but it also touches a few pieces of cross-platform code that was making assumptions based off of ScrollingCoordinator that aren&apos;t true in Chromium.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>561373</commentid>
    <comment_count>3</comment_count>
      <attachid>128081</attachid>
    <who name="Adam Barth">abarth</who>
    <bug_when>2012-02-21 16:44:22 -0800</bug_when>
    <thetext>Comment on attachment 128081
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=128081&amp;action=review

&gt; Source/WebCore/rendering/RenderLayerBacking.cpp:104
&gt; +#if PLATFORM(MAC)

Is this right?  There&apos;s no more-specific ifdef?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>561390</commentid>
    <comment_count>4</comment_count>
    <who name="James Robinson">jamesr</who>
    <bug_when>2012-02-21 16:59:54 -0800</bug_when>
    <thetext>(In reply to comment #3)
&gt; (From update of attachment 128081 [details])
&gt; View in context: https://bugs.webkit.org/attachment.cgi?id=128081&amp;action=review
&gt; 
&gt; &gt; Source/WebCore/rendering/RenderLayerBacking.cpp:104
&gt; &gt; +#if PLATFORM(MAC)
&gt; 
&gt; Is this right?  There&apos;s no more-specific ifdef?

I&apos;m not aware of one.  tiledLayerCache is a CoreAnimation-specific thingy and this appears to be a mac-specific tweak, given that ScrollingCoordinator is only enabled on Mac and Chromium and Chromium doesn&apos;t use CoreAnimation.  Given the FIXME I imagine that Anders has some plan to clean this up, so hopefully he can improve this is there&apos;s a clear way to do that.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>561391</commentid>
    <comment_count>5</comment_count>
    <who name="James Robinson">jamesr</who>
    <bug_when>2012-02-21 17:04:03 -0800</bug_when>
    <thetext>Committed r108422: &lt;http://trac.webkit.org/changeset/108422&gt;</thetext>
  </long_desc>
      
          <attachment
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            <attachid>128081</attachid>
            <date>2012-02-21 16:38:01 -0800</date>
            <delta_ts>2012-02-21 16:44:22 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-79165-20120221163800.patch</filename>
            <type>text/plain</type>
            <size>7951</size>
            <attacher name="James Robinson">jamesr</attacher>
            
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<flag name="review"
          id="130353"
          type_id="1"
          status="+"
          setter="abarth"
    />
          </attachment>
      

    </bug>

</bugzilla>