<?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>163308</bug_id>
          
          <creation_ts>2016-10-11 17:09:31 -0700</creation_ts>
          <short_desc>REGRESSION (r206025): All YouTube videos play with black bars on all four sides</short_desc>
          <delta_ts>2016-10-19 21:06:28 -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>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="Jer Noble">jer.noble</reporter>
          <assigned_to name="Jer Noble">jer.noble</assigned_to>
          <cc>commit-queue</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1239104</commentid>
    <comment_count>0</comment_count>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2016-10-11 17:09:31 -0700</bug_when>
    <thetext>REGRESSION (r206025): All YouTube videos play with black bars on all four sides</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1239106</commentid>
    <comment_count>1</comment_count>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2016-10-11 17:14:11 -0700</bug_when>
    <thetext>rdar://problem/28613862</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1239301</commentid>
    <comment_count>2</comment_count>
      <attachid>291360</attachid>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2016-10-12 09:16:08 -0700</bug_when>
    <thetext>Created attachment 291360
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1239908</commentid>
    <comment_count>3</comment_count>
      <attachid>291360</attachid>
    <who name="Darin Adler">darin</who>
    <bug_when>2016-10-13 12:37:14 -0700</bug_when>
    <thetext>Comment on attachment 291360
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=291360&amp;action=review

&gt; Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.mm:692
&gt;          RetainPtr&lt;id&gt; observer = weakThis-&gt;m_sizeChangeObservers.takeFirst();

What is going on here? How is it valuable to set a local variable that is then never used?

&gt; Source/WebCore/platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm:960
&gt; +    m_cachedSize = FloatSize();

I think { } is nicer here than FloatSize().

&gt; Source/WebCore/platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm:988
&gt;              m_cachedSize = formatSize;

What guarantees this new size is not zero?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1239920</commentid>
    <comment_count>4</comment_count>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2016-10-13 12:58:00 -0700</bug_when>
    <thetext>(In reply to comment #3)
&gt; Comment on attachment 291360 [details]
&gt; Patch
&gt; 
&gt; View in context:
&gt; https://bugs.webkit.org/attachment.cgi?id=291360&amp;action=review
&gt; 
&gt; &gt; Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateMediaSourceAVFObjC.mm:692
&gt; &gt;          RetainPtr&lt;id&gt; observer = weakThis-&gt;m_sizeChangeObservers.takeFirst();
&gt; 
&gt; What is going on here? How is it valuable to set a local variable that is
&gt; then never used?

I looked back through this file&apos;s history, hoping that I&apos;d find some case where I&apos;d previously used the results of observer.  Alas, it&apos;s never been used. I&apos;ll take care of this in a follow-up.

&gt; &gt; Source/WebCore/platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm:960
&gt; &gt; +    m_cachedSize = FloatSize();
&gt; 
&gt; I think { } is nicer here than FloatSize().

Ok!

&gt; &gt; Source/WebCore/platform/graphics/avfoundation/objc/SourceBufferPrivateAVFObjC.mm:988
&gt; &gt;              m_cachedSize = formatSize;
&gt; 
&gt; What guarantees this new size is not zero?

Nothing, and good point. Maybe I&apos;ll make this an Optional&lt;FloatSize&gt; and use !m_cachedSize instead of .isZero().</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1239929</commentid>
    <comment_count>5</comment_count>
      <attachid>291509</attachid>
    <who name="Jer Noble">jer.noble</who>
    <bug_when>2016-10-13 13:15:09 -0700</bug_when>
    <thetext>Created attachment 291509
Patch for landing</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1242259</commentid>
    <comment_count>6</comment_count>
      <attachid>291509</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2016-10-19 20:12:57 -0700</bug_when>
    <thetext>Comment on attachment 291509
Patch for landing

Clearing flags on attachment: 291509

Committed r207584: &lt;http://trac.webkit.org/changeset/207584&gt;</thetext>
  </long_desc>
      
          <attachment
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              ispatch="1"
              isprivate="0"
          >
            <attachid>291360</attachid>
            <date>2016-10-12 09:16:08 -0700</date>
            <delta_ts>2016-10-13 12:37:14 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-163308-20161012091244.patch</filename>
            <type>text/plain</type>
            <size>9387</size>
            <attacher name="Jer Noble">jer.noble</attacher>
            
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<flag name="review"
          id="314496"
          type_id="1"
          status="+"
          setter="darin"
    />
          </attachment>
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>291509</attachid>
            <date>2016-10-13 13:15:09 -0700</date>
            <delta_ts>2016-10-19 20:12:57 -0700</delta_ts>
            <desc>Patch for landing</desc>
            <filename>bug-163308-20161013131143.patch</filename>
            <type>text/plain</type>
            <size>10850</size>
            <attacher name="Jer Noble">jer.noble</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>