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    <body><span class="vcard"><a class="email" href="mailto:darin&#64;apple.com" title="Darin Adler &lt;darin&#64;apple.com&gt;"> <span class="fn">Darin Adler</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - MediaSession: propagate MediaSessionMetadata to WebPageProxy"
   href="https://bugs.webkit.org/show_bug.cgi?id=146282">bug 146282</a>
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            <th>What</th>
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           <td style="text-align:right;">Attachment #255491 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 - MediaSession: propagate MediaSessionMetadata to WebPageProxy"
   href="https://bugs.webkit.org/show_bug.cgi?id=146282#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - MediaSession: propagate MediaSessionMetadata to WebPageProxy"
   href="https://bugs.webkit.org/show_bug.cgi?id=146282">bug 146282</a>
              from <span class="vcard"><a class="email" href="mailto:darin&#64;apple.com" title="Darin Adler &lt;darin&#64;apple.com&gt;"> <span class="fn">Darin Adler</span></a>
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        <pre>Comment on <span class=""><a href="attachment.cgi?id=255491&amp;action=diff" name="attach_255491" title="Patch">attachment 255491</a> <a href="attachment.cgi?id=255491&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=255491&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=255491&amp;action=review</a>

<span class="quote">&gt; Source/WebCore/Modules/mediasession/MediaSession.cpp:104
&gt; +    m_document.page()-&gt;chrome().client().mediaSessionMetadataDidChange(m_metadata);</span >

What guarantees that page() is not null here? We should check it for null unless there is an ironclad guarantee it can’t be.

<span class="quote">&gt; Source/WebCore/page/ChromeClient.h:50
&gt; +#if ENABLE(MEDIA_SESSION)
&gt; +#include &quot;MediaSessionMetadata.h&quot;
&gt; +#endif</span >

We should not include this header. We should be able to just forward-declare MediaSessionMetadata to compile this header.</pre>
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