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    <body><span class="vcard"><a class="email" href="mailto:achristensen&#64;apple.com" title="Alex Christensen &lt;achristensen&#64;apple.com&gt;"> <span class="fn">Alex Christensen</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Update the Resource Timing implementation"
   href="https://bugs.webkit.org/show_bug.cgi?id=161068">bug 161068</a>
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           <td style="text-align:right;">Attachment #286776 Flags</td>
           <td>review?
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           <td>review-
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Update the Resource Timing implementation"
   href="https://bugs.webkit.org/show_bug.cgi?id=161068#c19">Comment # 19</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Update the Resource Timing implementation"
   href="https://bugs.webkit.org/show_bug.cgi?id=161068">bug 161068</a>
              from <span class="vcard"><a class="email" href="mailto:achristensen&#64;apple.com" title="Alex Christensen &lt;achristensen&#64;apple.com&gt;"> <span class="fn">Alex Christensen</span></a>
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        <pre>Comment on <span class=""><a href="attachment.cgi?id=286776&amp;action=diff" name="attach_286776" title="Patch">attachment 286776</a> <a href="attachment.cgi?id=286776&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=286776&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=286776&amp;action=review</a>

<span class="quote">&gt; Source/WebCore/loader/LoadTiming.cpp:54
&gt; +    , m_isCached(false)</span >

These should be in the header.
m_isCached { false };

<span class="quote">&gt; Source/WebCore/loader/ResourceLoader.h:144
&gt; +    LoadTiming&amp; loadTiming() { return m_loadTiming; }</span >

Can this be const?

<span class="quote">&gt; Source/WebCore/loader/SubresourceLoader.cpp:463
&gt; +    finishTime = monotonicallyIncreasingTime();</span >

We should probably report this time in didFail, too.  Or at least something interesting.
Also, finishTime is a double that is a parameter coming from somewhere.  It might already have the current time.

// FIXME: ...
UNUSED_PARAM(finishTime);
double realFinishTime = ...

Same in InspectorNetworkAgent::didFinishLoading

<span class="quote">&gt; Source/WebCore/page/PerformanceResourceTiming.cpp:173
&gt; +    if (m_loadTiming.isCached())
&gt; +        return connectStart();</span >

These seem suspicious.  I think this is covering up a problem.</pre>
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