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<!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>173174</bug_id>
          
          <creation_ts>2017-06-09 11:37:42 -0700</creation_ts>
          <short_desc>Make sure we protect |this| in lambdas in WebResourceLoadStatisticsStore::registerSharedResourceLoadObserver()</short_desc>
          <delta_ts>2017-06-09 15:17:40 -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>WebKit2</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="Chris Dumez">cdumez</reporter>
          <assigned_to name="Chris Dumez">cdumez</assigned_to>
          <cc>bfulgham</cc>
    
    <cc>commit-queue</cc>
    
    <cc>darin</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>wilander</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1317531</commentid>
    <comment_count>0</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:37:42 -0700</bug_when>
    <thetext>Make sure we protect |this| in lambdas in WebResourceLoadStatisticsStore::registerSharedResourceLoadObserver().</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317532</commentid>
    <comment_count>1</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:37:58 -0700</bug_when>
    <thetext>&lt;rdar://problem/32598919&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317536</commentid>
    <comment_count>2</comment_count>
      <attachid>312464</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:39:39 -0700</bug_when>
    <thetext>Created attachment 312464
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317542</commentid>
    <comment_count>3</comment_count>
      <attachid>312466</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:44:01 -0700</bug_when>
    <thetext>Created attachment 312466
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317547</commentid>
    <comment_count>4</comment_count>
      <attachid>312466</attachid>
    <who name="Darin Adler">darin</who>
    <bug_when>2017-06-09 11:49:58 -0700</bug_when>
    <thetext>Comment on attachment 312466
Patch

Looks good to me.

After this change, though, WebResourceLoadStatisticsStore::processStatisticsAndDataRecords is the one remaining lambda that captures [this], but does not ref/deref it. The one passed to coreStore().processStatistics. Perhaps that function is guaranteed to run synchronously?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317548</commentid>
    <comment_count>5</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:50:42 -0700</bug_when>
    <thetext>(In reply to Darin Adler from comment #4)
&gt; Comment on attachment 312466 [details]
&gt; Patch
&gt; 
&gt; Looks good to me.
&gt; 
&gt; After this change, though,
&gt; WebResourceLoadStatisticsStore::processStatisticsAndDataRecords is the one
&gt; remaining lambda that captures [this], but does not ref/deref it. The one
&gt; passed to coreStore().processStatistics. Perhaps that function is guaranteed
&gt; to run synchronously?

That one is safe because it is synchronous.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317550</commentid>
    <comment_count>6</comment_count>
      <attachid>312466</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:52:13 -0700</bug_when>
    <thetext>Comment on attachment 312466
Patch

Clearing flags on attachment: 312466

Committed r218006: &lt;http://trac.webkit.org/changeset/218006&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317551</commentid>
    <comment_count>7</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 11:52:14 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1317663</commentid>
    <comment_count>8</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2017-06-09 15:17:40 -0700</bug_when>
    <thetext>Landed a follow-up fix in https://trac.webkit.org/r218022.</thetext>
  </long_desc>
      
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            <delta_ts>2017-06-09 11:44:00 -0700</delta_ts>
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