<?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>165127</bug_id>
          
          <creation_ts>2016-11-28 17:21:15 -0800</creation_ts>
          <short_desc>Avoid ref-count churn in CSSParser::ValueWithCalculation::setCalculation()</short_desc>
          <delta_ts>2016-11-29 10:53:31 -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>CSS</component>
          <version>WebKit Local Build</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</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="Daniel Bates">dbates</reporter>
          <assigned_to name="Daniel Bates">dbates</assigned_to>
          <cc>hyatt</cc>
    
    <cc>koivisto</cc>
    
    <cc>simon.fraser</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1254121</commentid>
    <comment_count>0</comment_count>
    <who name="Daniel Bates">dbates</who>
    <bug_when>2016-11-28 17:21:15 -0800</bug_when>
    <thetext>In CSSParser::ValueWithCalculation::setCalculation() we copy the passed RefPtr into CSSParser::ValueWithCalculation::m_calculation. Instead we should WTFMove() it. This has the benefit of avoiding unnecessary ref-count churn.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1254123</commentid>
    <comment_count>1</comment_count>
      <attachid>295555</attachid>
    <who name="Daniel Bates">dbates</who>
    <bug_when>2016-11-28 17:21:46 -0800</bug_when>
    <thetext>Created attachment 295555
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1254331</commentid>
    <comment_count>2</comment_count>
      <attachid>295555</attachid>
    <who name="Daniel Bates">dbates</who>
    <bug_when>2016-11-29 10:53:27 -0800</bug_when>
    <thetext>Comment on attachment 295555
Patch

Clearing flags on attachment: 295555

Committed r209078: &lt;http://trac.webkit.org/changeset/209078&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1254332</commentid>
    <comment_count>3</comment_count>
    <who name="Daniel Bates">dbates</who>
    <bug_when>2016-11-29 10:53:31 -0800</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>295555</attachid>
            <date>2016-11-28 17:21:46 -0800</date>
            <delta_ts>2016-11-29 10:53:27 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-165127-20161128172122.patch</filename>
            <type>text/plain</type>
            <size>1434</size>
            <attacher name="Daniel Bates">dbates</attacher>
            
              <data encoding="base64">U3VidmVyc2lvbiBSZXZpc2lvbjogMjA5MDUwCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D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</data>

          </attachment>
      

    </bug>

</bugzilla>