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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/170301">170301</a></dd>
<dt>Author</dt> <dd>jer.noble@apple.com</dd>
<dt>Date</dt> <dd>2014-06-23 11:01:24 -0700 (Mon, 23 Jun 2014)</dd>
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<h3>Log Message</h3>
<pre>[Mac] Uncaught exception crash when destroying MediaPlayerPrivateAVFoundationObjC
https://bugs.webkit.org/show_bug.cgi?id=134198

Reviewed by Eric Carlson.

Now that we always create an AVPlayerLayer when creating an AVPlayer, but we don't
return that layer from platformLayer() unless we've been asked to, we no longer are
asked to destroy our video layer from MediaPlayerPrivateAVFoundation::tearDownVideoRendering().

Instead, explicitly destroy our video layer (and remove the KVO-observer which is
causing this exception) in the MediaPlayerPrivateAVFoundationObjC destructor.

* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::~MediaPlayerPrivateAVFoundationObjC):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsavfoundationobjcMediaPlayerPrivateAVFoundationObjCmm">trunk/Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (170300 => 170301)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-06-23 17:50:02 UTC (rev 170300)
+++ trunk/Source/WebCore/ChangeLog        2014-06-23 18:01:24 UTC (rev 170301)
</span><span class="lines">@@ -1,3 +1,20 @@
</span><ins>+2014-06-23  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        [Mac] Uncaught exception crash when destroying MediaPlayerPrivateAVFoundationObjC
+        https://bugs.webkit.org/show_bug.cgi?id=134198
+
+        Reviewed by Eric Carlson.
+
+        Now that we always create an AVPlayerLayer when creating an AVPlayer, but we don't
+        return that layer from platformLayer() unless we've been asked to, we no longer are
+        asked to destroy our video layer from MediaPlayerPrivateAVFoundation::tearDownVideoRendering().
+
+        Instead, explicitly destroy our video layer (and remove the KVO-observer which is
+        causing this exception) in the MediaPlayerPrivateAVFoundationObjC destructor.
+
+        * platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
+        (WebCore::MediaPlayerPrivateAVFoundationObjC::~MediaPlayerPrivateAVFoundationObjC):
+
</ins><span class="cx"> 2014-06-23  Andreas Kling  &lt;akling@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Remove unused FrameView::setUseCustomFixedPositionLayoutRect().
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsavfoundationobjcMediaPlayerPrivateAVFoundationObjCmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm (170300 => 170301)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm        2014-06-23 17:50:02 UTC (rev 170300)
+++ trunk/Source/WebCore/platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm        2014-06-23 18:01:24 UTC (rev 170301)
</span><span class="lines">@@ -420,6 +420,10 @@
</span><span class="cx">     if (m_videoOutputSemaphore)
</span><span class="cx">         dispatch_release(m_videoOutputSemaphore);
</span><span class="cx"> #endif
</span><ins>+
+    if (m_videoLayer)
+        destroyVideoLayer();
+
</ins><span class="cx">     cancelLoad();
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre>
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