<?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>73085</bug_id>
          
          <creation_ts>2011-11-24 09:51:14 -0800</creation_ts>
          <short_desc>[chromium] composited layers are not invalidated correctly with a zoom-in page scale factor</short_desc>
          <delta_ts>2012-10-17 12:56:31 -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>WORKSFORME</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>
          
          <blocked>66687</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Grace Kloba">klobag</reporter>
          <assigned_to name="Grace Kloba">klobag</assigned_to>
          <cc>abarth</cc>
    
    <cc>cc-bugs</cc>
    
    <cc>fsamuel</cc>
    
    <cc>hclam</cc>
    
    <cc>husky</cc>
    
    <cc>jamesr</cc>
    
    <cc>peter</cc>
    
    <cc>skyostil</cc>
    
    <cc>skyostil</cc>
    
    <cc>webkit.review.bot</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>508823</commentid>
    <comment_count>0</comment_count>
    <who name="Grace Kloba">klobag</who>
    <bug_when>2011-11-24 09:51:14 -0800</bug_when>
    <thetext>This is the side effect of https://bugs.webkit.org/show_bug.cgi?id=71225. When page scale factor is greater than one, the invalidation area is not scale correctly. This caused some area are not updated correct when it needs.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>511226</commentid>
    <comment_count>1</comment_count>
      <attachid>117074</attachid>
    <who name="Grace Kloba">klobag</who>
    <bug_when>2011-11-29 17:00:11 -0800</bug_when>
    <thetext>Created attachment 117074
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>511228</commentid>
    <comment_count>2</comment_count>
      <attachid>117074</attachid>
    <who name="James Robinson">jamesr</who>
    <bug_when>2011-11-29 17:02:46 -0800</bug_when>
    <thetext>Comment on attachment 117074
Patch

Need a test!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>672329</commentid>
    <comment_count>3</comment_count>
      <attachid>117074</attachid>
    <who name="Dana Jansens">danakj</who>
    <bug_when>2012-07-18 06:44:57 -0700</bug_when>
    <thetext>Comment on attachment 117074
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=117074&amp;action=review

&gt; Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp:684
&gt; -        return pageScaleFactor() * deviceScaleFactor();
&gt; +        return pageScaleFactor();

This is going to break ChromeOS, where pageScaleFactor is 1 but deviceScaleFactor is not (see NonCompositedContentHost.h)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>672332</commentid>
    <comment_count>4</comment_count>
      <attachid>117074</attachid>
    <who name="Dana Jansens">danakj</who>
    <bug_when>2012-07-18 06:46:16 -0700</bug_when>
    <thetext>Comment on attachment 117074
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=117074&amp;action=review

&gt;&gt; Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp:684
&gt;&gt; +        return pageScaleFactor();
&gt; 
&gt; This is going to break ChromeOS, where pageScaleFactor is 1 but deviceScaleFactor is not (see NonCompositedContentHost.h)

Also, note that deviceScaleFactor() would be 1 on non-ChromeOS already (see WebViewImpl.cpp:3685)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>672335</commentid>
    <comment_count>5</comment_count>
    <who name="Sami Kyöstilä">skyostil</who>
    <bug_when>2012-07-18 06:52:38 -0700</bug_when>
    <thetext>I wonder if this is related: https://bugs.webkit.org/show_bug.cgi?id=88762</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>744518</commentid>
    <comment_count>6</comment_count>
    <who name="Adam Barth">abarth</who>
    <bug_when>2012-10-17 12:56:31 -0700</bug_when>
    <thetext>This patch appears to no longer be needed.</thetext>
  </long_desc>
      
          <attachment
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              ispatch="1"
              isprivate="0"
          >
            <attachid>117074</attachid>
            <date>2011-11-29 17:00:11 -0800</date>
            <delta_ts>2012-07-18 06:46:16 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-73085-20111129170010.patch</filename>
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    </bug>

</bugzilla>