<?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>151827</bug_id>
          
          <creation_ts>2015-12-03 14:49:35 -0800</creation_ts>
          <short_desc>Have layer memory use consult the backing store format</short_desc>
          <delta_ts>2015-12-03 15:45:35 -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>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="Simon Fraser (smfr)">simon.fraser</reporter>
          <assigned_to name="Simon Fraser (smfr)">simon.fraser</assigned_to>
          <cc>simon.fraser</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1146075</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2015-12-03 14:49:35 -0800</bug_when>
    <thetext>Have layer memory use consult the backing store format</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1146077</commentid>
    <comment_count>1</comment_count>
      <attachid>266562</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2015-12-03 14:50:44 -0800</bug_when>
    <thetext>Created attachment 266562
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1146078</commentid>
    <comment_count>2</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2015-12-03 14:51:08 -0800</bug_when>
    <thetext>rdar://problem/23746497</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1146108</commentid>
    <comment_count>3</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2015-12-03 15:45:35 -0800</bug_when>
    <thetext>https://trac.webkit.org/r193382</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>266562</attachid>
            <date>2015-12-03 14:50:44 -0800</date>
            <delta_ts>2015-12-03 14:54:02 -0800</delta_ts>
            <desc>Patch</desc>
            <filename>bug-151827-20151203145019.patch</filename>
            <type>text/plain</type>
            <size>6498</size>
            <attacher name="Simon Fraser (smfr)">simon.fraser</attacher>
            
              <data encoding="base64">U3VidmVyc2lvbiBSZXZpc2lvbjogMTkzMzU2CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D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</data>
<flag name="review"
          id="291579"
          type_id="1"
          status="+"
          setter="dino"
    />
          </attachment>
      

    </bug>

</bugzilla>