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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>143779</bug_id>
          
          <creation_ts>2015-04-15 09:42:40 -0700</creation_ts>
          <short_desc>[Win] DRT does not seem to reset the &apos;UsesPageCache&apos; setting between tests</short_desc>
          <delta_ts>2015-04-15 17:27:18 -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>Tools / Tests</component>
          <version>528+ (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></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>143463</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Chris Dumez">cdumez</reporter>
          <assigned_to name="Chris Dumez">cdumez</assigned_to>
          <cc>ap</cc>
    
    <cc>bfulgham</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1085514</commentid>
    <comment_count>0</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 09:42:40 -0700</bug_when>
    <thetext>DRT does not seem to reset the &apos;UsesPageCache&apos; settings between tests on Windows. This should be done in resetWebPreferencesToConsistentValues() in DumpRenderTree.cpp, similarly to what is done in DumpRenderTree.mm on Mac / WK1.
Without test, PageCache could stay enabled after page cache tests (They enable PageCache explicitly via &apos;testRunner.overridePreference(&quot;WebKitUsesPageCachePreferenceKey&quot;, 1)&apos;) and cause weird behaviors.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085519</commentid>
    <comment_count>1</comment_count>
      <attachid>250800</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 09:45:06 -0700</bug_when>
    <thetext>Created attachment 250800
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085521</commentid>
    <comment_count>2</comment_count>
      <attachid>250801</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 09:47:07 -0700</bug_when>
    <thetext>Created attachment 250801
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085528</commentid>
    <comment_count>3</comment_count>
      <attachid>250801</attachid>
    <who name="Brent Fulgham">bfulgham</who>
    <bug_when>2015-04-15 09:50:34 -0700</bug_when>
    <thetext>Comment on attachment 250801
Patch

r=me.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085536</commentid>
    <comment_count>4</comment_count>
      <attachid>250801</attachid>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 09:54:59 -0700</bug_when>
    <thetext>Comment on attachment 250801
Patch

Clearing flags on attachment: 250801

Committed r182844: &lt;http://trac.webkit.org/changeset/182844&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085537</commentid>
    <comment_count>5</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 09:55:03 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085776</commentid>
    <comment_count>6</comment_count>
    <who name="Chris Dumez">cdumez</who>
    <bug_when>2015-04-15 17:26:13 -0700</bug_when>
    <thetext>FYI, after this change. The number of new passes went from 28 to 32 on the Windows Debug bot. Also, the flakes went down from 9 to 1. Similar results on the Windows Release bot.

So it looks like the change was indeed useful :)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1085778</commentid>
    <comment_count>7</comment_count>
    <who name="Brent Fulgham">bfulgham</who>
    <bug_when>2015-04-15 17:27:18 -0700</bug_when>
    <thetext>I&apos;m also wondering if (In reply to comment #6)
&gt; FYI, after this change. The number of new passes went from 28 to 32 on the
&gt; Windows Debug bot. Also, the flakes went down from 9 to 1. Similar results
&gt; on the Windows Release bot.
&gt; 
&gt; So it looks like the change was indeed useful :)

That&apos;s wonderful news! I wonder if I can re-enable a few of the tests I identified as messing up the page cache previously. All of those symptoms might have been caused by this bug you found.</thetext>
  </long_desc>
      
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            <date>2015-04-15 09:47:07 -0700</date>
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