<?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>219017</bug_id>
          
          <creation_ts>2020-11-16 19:10:16 -0800</creation_ts>
          <short_desc>REGRESSION (r269824): YouTube media control bar sometimes flickers</short_desc>
          <delta_ts>2020-11-17 00:28:54 -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>Compositing</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="Tim Horton">thorton</reporter>
          <assigned_to name="Tim Horton">thorton</assigned_to>
          <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1708088</commentid>
    <comment_count>0</comment_count>
    <who name="Tim Horton">thorton</who>
    <bug_when>2020-11-16 19:10:16 -0800</bug_when>
    <thetext>REGRESSION (r269824): YouTube media control bar sometimes flickers</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708089</commentid>
    <comment_count>1</comment_count>
      <attachid>414299</attachid>
    <who name="Tim Horton">thorton</who>
    <bug_when>2020-11-16 19:10:45 -0800</bug_when>
    <thetext>Created attachment 414299
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708090</commentid>
    <comment_count>2</comment_count>
    <who name="Tim Horton">thorton</who>
    <bug_when>2020-11-16 19:10:47 -0800</bug_when>
    <thetext>&lt;rdar://problem/71454799&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708095</commentid>
    <comment_count>3</comment_count>
      <attachid>414299</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2020-11-16 19:20:53 -0800</bug_when>
    <thetext>Comment on attachment 414299
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=414299&amp;action=review

&gt; LayoutTests/compositing/repaint/transparent-layer-repaint-expected.html:4
&gt; +  &lt;style type=&quot;text/css&quot; media=&quot;screen&quot;&gt;

No need for `type=&quot;text/css&quot; media=&quot;screen&quot;`

&gt; LayoutTests/compositing/repaint/transparent-layer-repaint-expected.html:9
&gt; +        -webkit-transform: translateZ(0);

no prefix!

&gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:9
&gt; +        -webkit-transform: translateZ(0);

No prefix.

&gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:25
&gt; +            await UIHelper.ensurePresentationUpdate();

Maybe UIHelper.renderingUpdate()?

&gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:27
&gt; +            await UIHelper.ensurePresentationUpdate();

Same</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708097</commentid>
    <comment_count>4</comment_count>
    <who name="Tim Horton">thorton</who>
    <bug_when>2020-11-16 19:29:10 -0800</bug_when>
    <thetext>(In reply to Simon Fraser (smfr) from comment #3)
&gt; Comment on attachment 414299 [details]
&gt; Patch
&gt; 
&gt; View in context:
&gt; https://bugs.webkit.org/attachment.cgi?id=414299&amp;action=review
&gt; 
&gt; &gt; LayoutTests/compositing/repaint/transparent-layer-repaint-expected.html:4
&gt; &gt; +  &lt;style type=&quot;text/css&quot; media=&quot;screen&quot;&gt;
&gt; 
&gt; No need for `type=&quot;text/css&quot; media=&quot;screen&quot;`

Erk, I removed them from the other one (obviously I started with a really antique test).

&gt; &gt; LayoutTests/compositing/repaint/transparent-layer-repaint-expected.html:9
&gt; &gt; +        -webkit-transform: translateZ(0);
&gt; 
&gt; no prefix!

TRUE

&gt; &gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:9
&gt; &gt; +        -webkit-transform: translateZ(0);
&gt; 
&gt; No prefix.
&gt; 
&gt; &gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:25
&gt; &gt; +            await UIHelper.ensurePresentationUpdate();
&gt; 
&gt; Maybe UIHelper.renderingUpdate()?

Whazzat. I&apos;ll look!

&gt; &gt; LayoutTests/compositing/repaint/transparent-layer-repaint.html:27
&gt; &gt; +            await UIHelper.ensurePresentationUpdate();
&gt; 
&gt; Same</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708101</commentid>
    <comment_count>5</comment_count>
      <attachid>414301</attachid>
    <who name="Tim Horton">thorton</who>
    <bug_when>2020-11-16 19:36:38 -0800</bug_when>
    <thetext>Created attachment 414301
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1708146</commentid>
    <comment_count>6</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2020-11-17 00:28:53 -0800</bug_when>
    <thetext>Committed r269895: &lt;https://trac.webkit.org/changeset/269895&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 414301.</thetext>
  </long_desc>
      
          <attachment
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            <attachid>414299</attachid>
            <date>2020-11-16 19:10:45 -0800</date>
            <delta_ts>2020-11-16 19:36:36 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-219017-20201116191044.patch</filename>
            <type>text/plain</type>
            <size>5611</size>
            <attacher name="Tim Horton">thorton</attacher>
            
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            <attachid>414301</attachid>
            <date>2020-11-16 19:36:38 -0800</date>
            <delta_ts>2020-11-17 00:28:54 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-219017-20201116193637.patch</filename>
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            <attacher name="Tim Horton">thorton</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>