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    <body><span class="vcard"><a class="email" href="mailto:andersca&#64;apple.com" title="Anders Carlsson &lt;andersca&#64;apple.com&gt;"> <span class="fn">Anders Carlsson</span></a>
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              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - We should also store the time information for recent searches"
   href="https://bugs.webkit.org/show_bug.cgi?id=148388">bug 148388</a>
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           <td style="text-align:right;">Attachment #261233 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 - We should also store the time information for recent searches"
   href="https://bugs.webkit.org/show_bug.cgi?id=148388#c15">Comment # 15</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - We should also store the time information for recent searches"
   href="https://bugs.webkit.org/show_bug.cgi?id=148388">bug 148388</a>
              from <span class="vcard"><a class="email" href="mailto:andersca&#64;apple.com" title="Anders Carlsson &lt;andersca&#64;apple.com&gt;"> <span class="fn">Anders Carlsson</span></a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=261233&amp;action=diff" name="attach_261233" title="Patch v2">attachment 261233</a> <a href="attachment.cgi?id=261233&amp;action=edit" title="Patch v2">[details]</a></span>
Patch v2

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=261233&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=261233&amp;action=review</a>

I think you should use std::chrono::system_clock::time_point for times instead of double - then you can use std::chrono::system_clock::now() to create a time.

You can convert between time_points and NSDates using

    NSTimeInterval timeInterval = std::chrono::duration_cast&lt;std::chrono::duration&lt;double&gt;&gt;(modifiedSince.time_since_epoch()).count();
    NSDate *date = [NSDate dateWithTimeIntervalSince1970:timeInterval];

Does older versions of WebKit deal with the updated user defaults format?

<span class="quote">&gt; Source/WebCore/platform/win/SearchPopupMenuWin.cpp:96
&gt; +        if (CFGetTypeID(item) == CFArrayGetTypeID() &amp;&amp; CFArrayGetCount((CFArrayRef)item) == 2) {</span >

Can use dynamic_cf_cast here.

<span class="quote">&gt; Source/WebKit/mac/WebCoreSupport/SearchPopupMenuMac.mm:64
&gt; +        [items addObject:[NSArray arrayWithObjects:searchItem.first, [[NSNumber alloc] initWithDouble:searchItem.second], nil]];</span >

I think you should use NSDate for the times instead.

<span class="quote">&gt; Source/WebKit/mac/WebCoreSupport/SearchPopupMenuMac.mm:77
&gt; +        if ([item isKindOfClass:[NSArray class]] &amp;&amp; ((NSArray*)item).count == 2)
&gt; +            searchItems.append(std::make_pair((String)item[0], ((NSNumber*)item[1]).doubleValue));</span >

You can use dynamic_objc_cast here.</pre>
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