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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/180692">180692</a></dd>
<dt>Author</dt> <dd>lforschler@apple.com</dd>
<dt>Date</dt> <dd>2015-02-26 11:56:49 -0800 (Thu, 26 Feb 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merged <a href="http://trac.webkit.org/projects/webkit/changeset/179480">r179480</a>.  rdar://problem/19709193</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari6001415branchSourceWebCoreChangeLog">branches/safari-600.1.4.15-branch/Source/WebCore/ChangeLog</a></li>
<li><a href="#branchessafari6001415branchSourceWebCoreWebCoreexpin">branches/safari-600.1.4.15-branch/Source/WebCore/WebCore.exp.in</a></li>
<li><a href="#branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceh">branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterface.h</a></li>
<li><a href="#branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceAVKith">branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.h</a></li>
<li><a href="#branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceAVKitmm">branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.mm</a></li>
<li><a href="#branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenModelMediaElementmm">branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenModelMediaElement.mm</a></li>
<li><a href="#branchessafari6001415branchSourceWebKit2ChangeLog">branches/safari-600.1.4.15-branch/Source/WebKit2/ChangeLog</a></li>
<li><a href="#branchessafari6001415branchSourceWebKit2UIProcessiosWebVideoFullscreenManagerProxymessagesin">branches/safari-600.1.4.15-branch/Source/WebKit2/UIProcess/ios/WebVideoFullscreenManagerProxy.messages.in</a></li>
<li><a href="#branchessafari6001415branchSourceWebKit2WebProcessiosWebVideoFullscreenManagerh">branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.h</a></li>
<li><a href="#branchessafari6001415branchSourceWebKit2WebProcessiosWebVideoFullscreenManagermm">branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari6001415branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/ChangeLog (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/ChangeLog        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/ChangeLog        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -1,3 +1,56 @@
</span><ins>+2015-02-26  Lucas Forschler  &lt;lforschler@apple.com&gt;
+
+        Merge r179480
+
+    2015-02-02  Jeremy Jones  &lt;jeremyj@apple.com&gt;
+
+            Prevent crash when accessing WebAVPlayerController.delegate.
+            https://bugs.webkit.org/show_bug.cgi?id=140893
+
+            Reviewed by Darin Adler.
+
+            This patch aims to prevent a null delegate access during invalidation by adding null checks before accessing the delegate, by making explicit the recreation of m_playerController, and by consolidating and correcting the teardown sequence.
+
+            * WebCore.exp.in:
+            * platform/ios/WebVideoFullscreenInterface.h: add resetMediaState()
+            * platform/ios/WebVideoFullscreenInterfaceAVKit.h: ditto.
+            * platform/ios/WebVideoFullscreenInterfaceAVKit.mm:
+            (-[WebAVPlayerController playerViewController:shouldExitFullScreenWithReason:]): Check for null before accessing delegate.
+            (-[WebAVPlayerController play:]): ditto.
+            (-[WebAVPlayerController pause:]): ditto.
+            (-[WebAVPlayerController togglePlayback:]): ditto.
+            (-[WebAVPlayerController setPlaying:]): ditto.
+            (-[WebAVPlayerController beginScrubbing:]): ditto.
+            (-[WebAVPlayerController endScrubbing:]): ditto.
+            (-[WebAVPlayerController seekToTime:]): ditto.
+            (-[WebAVPlayerController beginScanningForward:]): ditto.
+            (-[WebAVPlayerController endScanningForward:]): ditto.
+            (-[WebAVPlayerController beginScanningBackward:]): ditto.
+            (-[WebAVPlayerController endScanningBackward:]): ditto.
+            (-[WebAVPlayerController seekToBeginning:]): ditto.
+            (-[WebAVPlayerController seekToEnd:]): ditto.
+            (-[WebAVPlayerController setCurrentAudioMediaSelectionOption:]): ditto.
+            (-[WebAVPlayerController setCurrentLegibleMediaSelectionOption:]): ditto.
+            (-[WebAVPlayerController layoutSublayersOfLayer:]): ditto.
+            (WebVideoFullscreenInterfaceAVKit::WebVideoFullscreenInterfaceAVKit): initialize m_playerController
+            (WebVideoFullscreenInterfaceAVKit::resetMediaState): Added.
+            (WebVideoFullscreenInterfaceAVKit::setDuration): remove playerController()
+            (WebVideoFullscreenInterfaceAVKit::setCurrentTime): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setRate): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setVideoDimensions): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setSeekableRanges): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setCanPlayFastReverse): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setAudioMediaSelectionOptions): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setLegibleMediaSelectionOptions): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setExternalPlayback): ditto.
+            (WebVideoFullscreenInterfaceAVKit::setupFullscreenInternal): ditto.
+            (WebVideoFullscreenInterfaceAVKit::enterFullscreenStandard): ditto.
+            (WebVideoFullscreenInterfaceAVKit::cleanupFullscreenInternal): consolidated cleanup code from invalidate()
+            (WebVideoFullscreenInterfaceAVKit::invalidate): consolidate cleanup code.
+            (WebVideoFullscreenInterfaceAVKit::playerController): Deleted.
+            * platform/ios/WebVideoFullscreenModelVideoElement.mm:
+            (WebVideoFullscreenModelVideoElement::setVideoElement): call resetMediaState()
+
</ins><span class="cx"> 2015-02-25  Babak Shafiei  &lt;bshafiei@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merge r180274.
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebCoreWebCoreexpin"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/WebCore.exp.in (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/WebCore.exp.in        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/WebCore.exp.in        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -3446,6 +3446,7 @@
</span><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit14setCurrentTimeEdd
</span><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit15enterFullscreenEv
</span><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit15setupFullscreenER7CALayerNS_7IntRectEP6UIView
</span><ins>+__ZN7WebCore32WebVideoFullscreenInterfaceAVKit15resetMediaStateEv
</ins><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit17cleanupFullscreenEv
</span><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit17setSeekableRangesERKNS_10TimeRangesE
</span><span class="cx"> __ZN7WebCore32WebVideoFullscreenInterfaceAVKit18setVideoDimensionsEbff
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceh"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterface.h (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterface.h        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterface.h        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -44,6 +44,7 @@
</span><span class="cx">     enum ExternalPlaybackTargetType { TargetTypeNone, TargetTypeAirPlay, TargetTypeTVOut };
</span><span class="cx">     
</span><span class="cx">     virtual ~WebVideoFullscreenInterface() { };
</span><ins>+    virtual void resetMediaState() = 0;
</ins><span class="cx">     virtual void setDuration(double) = 0;
</span><span class="cx">     virtual void setCurrentTime(double currentTime, double anchorTime) = 0;
</span><span class="cx">     virtual void setRate(bool isPlaying, float playbackRate) = 0;
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceAVKith"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.h (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.h        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.h        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -63,6 +63,7 @@
</span><span class="cx"> 
</span><span class="cx"> protected:
</span><span class="cx">     void setupFullscreenInternal(PlatformLayer&amp;, IntRect initialRect, UIView *);
</span><ins>+    void beginSession();
</ins><span class="cx">     void enterFullscreenOptimized();
</span><span class="cx">     void enterFullscreenStandard();
</span><span class="cx">     void exitFullscreenInternal(IntRect finalRect);
</span><span class="lines">@@ -81,8 +82,6 @@
</span><span class="cx">     RetainPtr&lt;UIView&gt; m_parentView;
</span><span class="cx">     RetainPtr&lt;UIWindow&gt; m_parentWindow;
</span><span class="cx"> 
</span><del>-    WebAVPlayerController *playerController();
-    
</del><span class="cx">     void doEnterFullscreen();
</span><span class="cx">         
</span><span class="cx"> public:
</span><span class="lines">@@ -91,6 +90,7 @@
</span><span class="cx">     void setWebVideoFullscreenModel(WebVideoFullscreenModel*);
</span><span class="cx">     void setWebVideoFullscreenChangeObserver(WebVideoFullscreenChangeObserver*);
</span><span class="cx">     
</span><ins>+    virtual void resetMediaState() override; 
</ins><span class="cx">     virtual void setDuration(double) override;
</span><span class="cx">     virtual void setCurrentTime(double currentTime, double anchorTime) override;
</span><span class="cx">     virtual void setRate(bool isPlaying, float playbackRate) override;
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenInterfaceAVKitmm"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.mm (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.mm        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenInterfaceAVKit.mm        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -89,6 +89,7 @@
</span><span class="cx">     WebAVMediaSelectionOption *_currentLegibleMediaSelectionOption;
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+-(void)resetState;
</ins><span class="cx"> @property(retain) AVPlayerController* playerControllerProxy;
</span><span class="cx"> @property(assign) WebVideoFullscreenModel* delegate;
</span><span class="cx"> 
</span><span class="lines">@@ -156,6 +157,38 @@
</span><span class="cx">     [super dealloc];
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+
+-(void)resetState {
+    self.contentDuration = 0;
+    self.maxTime = 0;
+    self.contentDurationWithinEndTimes = 0;
+    self.loadedTimeRanges = @[];
+    
+    self.canPlay = NO;
+    self.canPause = NO;
+    self.canTogglePlayback = NO;
+    self.hasEnabledAudio = NO;
+    self.canSeek = NO;
+    self.minTime = 0;
+    self.status = AVPlayerControllerStatusUnknown;
+    
+    self.timing = nil;
+    self.rate = 0;
+    
+    self.hasEnabledVideo = NO;
+    self.contentDimensions = CGSizeMake(0, 0);
+    
+    self.seekableTimeRanges = [NSMutableArray array];
+    
+    self.canScanBackward = NO;
+    
+    self.audioMediaSelectionOptions = nil;
+    self.currentAudioMediaSelectionOption = nil;
+    
+    self.legibleMediaSelectionOptions = nil;
+    self.currentLegibleMediaSelectionOption = nil;
+}
+
</ins><span class="cx"> - (id)forwardingTargetForSelector:(SEL)selector
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(selector);
</span><span class="lines">@@ -166,9 +199,12 @@
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(playerViewController);
</span><span class="cx">     UNUSED_PARAM(reason);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return YES;
+    
</ins><span class="cx">     if (reason == AVPlayerViewControllerExitFullScreenReasonDoneButtonTapped || reason == AVPlayerViewControllerExitFullScreenReasonRemoteControlStopEventReceived)
</span><span class="cx">         self.delegate-&gt;pause();
</span><ins>+    
</ins><span class="cx">     self.delegate-&gt;requestExitFullscreen();
</span><span class="cx">     return NO;
</span><span class="cx"> }
</span><span class="lines">@@ -176,21 +212,24 @@
</span><span class="cx"> - (void)play:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;play();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)pause:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;pause();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)togglePlayback:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;togglePlayState();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -201,12 +240,13 @@
</span><span class="cx"> 
</span><span class="cx"> - (void)setPlaying:(BOOL)playing
</span><span class="cx"> {
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     if (playing)
</span><span class="cx">         self.delegate-&gt;play();
</span><span class="cx">     else
</span><span class="cx">         self.delegate-&gt;pause();
</span><del>-    }
</del><ins>+}
</ins><span class="cx"> 
</span><span class="cx"> + (NSSet *)keyPathsForValuesAffectingPlaying
</span><span class="cx"> {
</span><span class="lines">@@ -216,20 +256,23 @@
</span><span class="cx"> - (void)beginScrubbing:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;beginScrubbing();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)endScrubbing:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;endScrubbing();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)seekToTime:(NSTimeInterval)time
</span><span class="cx"> {
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;fastSeek(time);
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -292,28 +335,32 @@
</span><span class="cx"> - (void)beginScanningForward:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;beginScanningForward();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)endScanningForward:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;endScanning();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)beginScanningBackward:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;beginScanningBackward();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)endScanningBackward:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;endScanning();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -335,8 +382,8 @@
</span><span class="cx"> - (void)seekToBeginning:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
-
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;seekToTime(-INFINITY);
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -363,8 +410,8 @@
</span><span class="cx"> - (void)seekToEnd:(id)sender
</span><span class="cx"> {
</span><span class="cx">     UNUSED_PARAM(sender);
</span><del>-    ASSERT(self.delegate);
-
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     self.delegate-&gt;seekToTime(INFINITY);
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -417,7 +464,8 @@
</span><span class="cx">     [_currentAudioMediaSelectionOption release];
</span><span class="cx">     _currentAudioMediaSelectionOption = [option retain];
</span><span class="cx">     
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     
</span><span class="cx">     NSInteger index = NSNotFound;
</span><span class="cx">     
</span><span class="lines">@@ -440,7 +488,8 @@
</span><span class="cx">     [_currentLegibleMediaSelectionOption release];
</span><span class="cx">     _currentLegibleMediaSelectionOption = [option retain];
</span><span class="cx">     
</span><del>-    ASSERT(self.delegate);
</del><ins>+    if (!self.delegate)
+        return;
</ins><span class="cx">     
</span><span class="cx">     NSInteger index = NSNotFound;
</span><span class="cx">     
</span><span class="lines">@@ -580,22 +629,25 @@
</span><span class="cx"> @end
</span><span class="cx"> 
</span><span class="cx"> WebVideoFullscreenInterfaceAVKit::WebVideoFullscreenInterfaceAVKit()
</span><del>-    : m_videoFullscreenModel(nullptr)
</del><ins>+    : m_playerController(adoptNS([[WebAVPlayerController alloc] init]))
+    , m_videoFullscreenModel(nullptr)
</ins><span class="cx"> {
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-WebAVPlayerController *WebVideoFullscreenInterfaceAVKit::playerController()
</del><ins>+void WebVideoFullscreenInterfaceAVKit::resetMediaState()
</ins><span class="cx"> {
</span><del>-    if (!m_playerController)
-    {
-        m_playerController = adoptNS([[WebAVPlayerController alloc] init]);
-        if (m_videoFullscreenModel)
-            [m_playerController setDelegate:m_videoFullscreenModel];
-    }
-    return m_playerController.get();
</del><ins>+    RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
+    
+    dispatch_async(dispatch_get_main_queue(), [strongThis] {
+        if (!strongThis-&gt;m_playerController) {
+            strongThis-&gt;m_playerController = adoptNS([[WebAVPlayerController alloc] init]);
+            [strongThis-&gt;m_playerController setDelegate:strongThis-&gt;m_videoFullscreenModel];
+            
+        } else
+            [strongThis-&gt;m_playerController resetState];
+    });
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-
</del><span class="cx"> void WebVideoFullscreenInterfaceAVKit::setWebVideoFullscreenModel(WebVideoFullscreenModel* model)
</span><span class="cx"> {
</span><span class="cx">     m_videoFullscreenModel = model;
</span><span class="lines">@@ -612,7 +664,7 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, duration] {
</span><del>-        WebAVPlayerController* playerController = strongThis-&gt;playerController();
</del><ins>+        WebAVPlayerController* playerController = strongThis-&gt;m_playerController.get();
</ins><span class="cx"> 
</span><span class="cx">         // FIXME: https://bugs.webkit.org/show_bug.cgi?id=127017 use correct values instead of duration for all these
</span><span class="cx">         playerController.contentDuration = duration;
</span><span class="lines">@@ -636,10 +688,10 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, currentTime, anchorTime] {
</span><del>-        NSTimeInterval anchorTimeStamp = ![strongThis-&gt;playerController() rate] ? NAN : anchorTime;
</del><ins>+        NSTimeInterval anchorTimeStamp = ![strongThis-&gt;m_playerController rate] ? NAN : anchorTime;
</ins><span class="cx">         AVValueTiming *timing = [getAVValueTimingClass() valueTimingWithAnchorValue:currentTime
</span><span class="cx">             anchorTimeStamp:anchorTimeStamp rate:0];
</span><del>-        strongThis-&gt;playerController().timing = timing;
</del><ins>+        [strongThis-&gt;m_playerController setTiming:timing];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -648,7 +700,7 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, isPlaying, playbackRate] {
</span><del>-        strongThis-&gt;playerController().rate = isPlaying ? playbackRate : 0.;
</del><ins>+        [strongThis-&gt;m_playerController setRate:isPlaying ? playbackRate : 0.];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -657,8 +709,8 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, hasVideo, width, height] {
</span><del>-        strongThis-&gt;playerController().hasEnabledVideo = hasVideo;
-        strongThis-&gt;playerController().contentDimensions = CGSizeMake(width, height);
</del><ins>+        [strongThis-&gt;m_playerController setHasEnabledVideo:hasVideo];
+        [strongThis-&gt;m_playerController setContentDimensions:CGSizeMake(width, height)];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -678,7 +730,7 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, seekableRanges] {
</span><del>-        strongThis-&gt;playerController().seekableTimeRanges = seekableRanges.get();
</del><ins>+        [strongThis-&gt;m_playerController setSeekableTimeRanges:seekableRanges.get()];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -687,7 +739,7 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, canPlayFastReverse] {
</span><del>-        strongThis-&gt;playerController().canScanBackward = canPlayFastReverse;
</del><ins>+        [strongThis-&gt;m_playerController setCanScanBackward:canPlayFastReverse];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -708,9 +760,9 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx">     
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [webOptions, strongThis, selectedIndex] {
</span><del>-        strongThis-&gt;playerController().audioMediaSelectionOptions = webOptions.get();
</del><ins>+        [strongThis-&gt;m_playerController setAudioMediaSelectionOptions:webOptions.get()];
</ins><span class="cx">         if (selectedIndex &lt; [webOptions count])
</span><del>-            strongThis-&gt;playerController().currentAudioMediaSelectionOption = [webOptions objectAtIndex:static_cast&lt;NSUInteger&gt;(selectedIndex)];
</del><ins>+            [strongThis-&gt;m_playerController setCurrentAudioMediaSelectionOption:[webOptions objectAtIndex:static_cast&lt;NSUInteger&gt;(selectedIndex)]];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -720,9 +772,9 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx"> 
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [webOptions, strongThis, selectedIndex] {
</span><del>-        strongThis-&gt;playerController().legibleMediaSelectionOptions = webOptions.get();
</del><ins>+        [strongThis-&gt;m_playerController setLegibleMediaSelectionOptions:webOptions.get()];
</ins><span class="cx">         if (selectedIndex &lt; [webOptions count])
</span><del>-            strongThis-&gt;playerController().currentLegibleMediaSelectionOption = [webOptions objectAtIndex:static_cast&lt;NSUInteger&gt;(selectedIndex)];
</del><ins>+            [strongThis-&gt;m_playerController setCurrentLegibleMediaSelectionOption:[webOptions objectAtIndex:static_cast&lt;NSUInteger&gt;(selectedIndex)]];
</ins><span class="cx">     });
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -737,7 +789,7 @@
</span><span class="cx">     RefPtr&lt;WebVideoFullscreenInterfaceAVKit&gt; strongThis(this);
</span><span class="cx"> 
</span><span class="cx">     dispatch_async(dispatch_get_main_queue(), [strongThis, enabled, localizedDeviceName, externalPlaybackType] {
</span><del>-        WebAVPlayerController* playerController = strongThis-&gt;playerController();
</del><ins>+        WebAVPlayerController* playerController = strongThis-&gt;m_playerController.get();
</ins><span class="cx">         playerController.externalPlaybackAirPlayDeviceLocalizedName = localizedDeviceName;
</span><span class="cx">         playerController.externalPlaybackType = externalPlaybackType;
</span><span class="cx">         playerController.externalPlaybackActive = enabled;
</span><span class="lines">@@ -777,17 +829,17 @@
</span><span class="cx">     [m_videoLayer removeFromSuperlayer];
</span><span class="cx"> 
</span><span class="cx">     m_videoLayerContainer = [WebAVVideoLayer videoLayer];
</span><del>-    [m_videoLayerContainer setHidden:playerController().externalPlaybackActive];
</del><ins>+    [m_videoLayerContainer setHidden:[m_playerController isExternalPlaybackActive]];
</ins><span class="cx">     [m_videoLayerContainer setVideoSublayer:m_videoLayer.get()];
</span><span class="cx"> 
</span><del>-    CGSize videoSize = playerController().contentDimensions;
</del><ins>+    CGSize videoSize = [m_playerController contentDimensions];
</ins><span class="cx">     CGRect videoRect = CGRectMake(0, 0, videoSize.width, videoSize.height);
</span><span class="cx">     [m_videoLayerContainer setVideoRect:videoRect];
</span><span class="cx"> 
</span><span class="cx">     m_playerViewController = adoptNS([[getAVPlayerViewControllerClass() alloc] initWithVideoLayer:m_videoLayerContainer.get()]);
</span><span class="cx">     [m_playerViewController setShowsPlaybackControls:NO];
</span><del>-    [m_playerViewController setPlayerController:(AVPlayerController *)playerController()];
-    [m_playerViewController setDelegate:playerController()];
</del><ins>+    [m_playerViewController setPlayerController:(AVPlayerController *)m_playerController.get()];
+    [m_playerViewController setDelegate:m_playerController.get()];
</ins><span class="cx">     [m_videoLayerContainer setPlayerViewController:m_playerViewController.get()];
</span><span class="cx"> 
</span><span class="cx">     if (m_viewController) {
</span><span class="lines">@@ -893,18 +945,27 @@
</span><span class="cx">         if (m_parentWindow)
</span><span class="cx">             [[getUIApplicationClass() sharedApplication] _setStatusBarOrientation:[m_parentWindow interfaceOrientation]];
</span><span class="cx">     }
</span><ins>+    
+    [m_playerController setDelegate:nil];
+    
</ins><span class="cx">     [m_playerViewController setDelegate:nil];
</span><ins>+    [m_playerViewController setPlayerController:nil];
+    
+    [m_playerViewController exitFullScreenAnimated:NO completionHandler:nil];
+    
</ins><span class="cx">     [[m_playerViewController view] removeFromSuperview];
</span><span class="cx">     if (m_viewController)
</span><span class="cx">         [m_playerViewController removeFromParentViewController];
</span><del>-    [m_playerViewController setPlayerController:nil];
-    m_playerViewController = nil;
</del><ins>+    
</ins><span class="cx">     [m_videoLayer removeFromSuperlayer];
</span><del>-    m_videoLayer = nil;
</del><span class="cx">     [m_videoLayerContainer removeFromSuperlayer];
</span><span class="cx">     [m_videoLayerContainer setPlayerViewController:nil];
</span><ins>+    [[m_viewController view] removeFromSuperview];
+    
+    m_videoLayer = nil;
</ins><span class="cx">     m_videoLayerContainer = nil;
</span><del>-    [[m_viewController view] removeFromSuperview];
</del><ins>+    m_playerViewController = nil;
+    m_playerController = nil;
</ins><span class="cx">     m_viewController = nil;
</span><span class="cx">     m_window = nil;
</span><span class="cx">     m_parentView = nil;
</span><span class="lines">@@ -919,26 +980,10 @@
</span><span class="cx"> 
</span><span class="cx"> void WebVideoFullscreenInterfaceAVKit::invalidate()
</span><span class="cx"> {
</span><del>-    [m_window setHidden:YES];
-    [m_window setRootViewController:nil];
-    [m_playerViewController exitFullScreenAnimated:NO completionHandler:nil];
-    m_playerController = nil;
-    [m_playerViewController setDelegate:nil];
-    [[m_playerViewController view] removeFromSuperview];
-    if (m_viewController)
-        [m_playerViewController removeFromParentViewController];
-    [m_playerViewController setPlayerController:nil];
-    m_playerViewController = nil;
-    [m_videoLayer removeFromSuperlayer];
-    m_videoLayer = nil;
-    [m_videoLayerContainer removeFromSuperlayer];
-    [m_videoLayerContainer setPlayerViewController:nil];
-    m_videoLayerContainer = nil;
-    [[m_viewController view] removeFromSuperview];
-    m_viewController = nil;
-    m_window = nil;
-    m_parentView = nil;
-    m_parentWindow = nil;
</del><ins>+    m_videoFullscreenModel = nil;
+    m_fullscreenChangeObserver = nil;
+    
+    cleanupFullscreenInternal();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void WebVideoFullscreenInterfaceAVKit::requestHideAndExitFullscreen()
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebCoreplatformiosWebVideoFullscreenModelMediaElementmm"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenModelMediaElement.mm (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenModelMediaElement.mm        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebCore/platform/ios/WebVideoFullscreenModelMediaElement.mm        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -68,6 +68,9 @@
</span><span class="cx">     if (m_mediaElement == mediaElement)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><ins>+    if (m_videoFullscreenInterface)
+        m_videoFullscreenInterface-&gt;resetMediaState();
+
</ins><span class="cx">     if (m_mediaElement &amp;&amp; m_isListening) {
</span><span class="cx">         for (auto eventName : observedEventNames())
</span><span class="cx">             m_mediaElement-&gt;removeEventListener(eventName, this, false);
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebKit2/ChangeLog (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebKit2/ChangeLog        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebKit2/ChangeLog        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -1,3 +1,23 @@
</span><ins>+2015-02-26  Lucas Forschler  &lt;lforschler@apple.com&gt;
+
+        Merge r179480
+
+    2015-02-02  Jeremy Jones  &lt;jeremyj@apple.com&gt;
+
+            Prevent crash when accessing WebAVPlayerController.delegate.
+            https://bugs.webkit.org/show_bug.cgi?id=140893
+
+            Reviewed by Darin Adler.
+
+            Plumb new resetMediaState() through IPC interface WebVideoFullscreenManagerProxy.
+
+            * UIProcess/ios/WebVideoFullscreenManagerProxy.messages.in:
+            * UIProcess/ios/WebVideoFullscreenManagerProxy.mm:
+            (WebKit::WebVideoFullscreenManagerProxy::invalidate): remove redundant set to nullptr.
+            * WebProcess/ios/WebVideoFullscreenManager.h:
+            * WebProcess/ios/WebVideoFullscreenManager.mm:
+            (WebKit::WebVideoFullscreenManager::resetMediaState):
+
</ins><span class="cx"> 2015-02-25  Babak Shafiei  &lt;bshafiei@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merge r180539.
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebKit2UIProcessiosWebVideoFullscreenManagerProxymessagesin"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebKit2/UIProcess/ios/WebVideoFullscreenManagerProxy.messages.in (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebKit2/UIProcess/ios/WebVideoFullscreenManagerProxy.messages.in        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebKit2/UIProcess/ios/WebVideoFullscreenManagerProxy.messages.in        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -22,6 +22,7 @@
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="cx"> messages -&gt; WebVideoFullscreenManagerProxy {
</span><ins>+    ResetMediaState()
</ins><span class="cx">     SetCurrentTime(double currentTime, double hostTime)
</span><span class="cx">     SetVideoDimensions(bool hasVideo, unsigned width, unsigned height)
</span><span class="cx">     SetSeekableRangesVector(Vector&lt;std::pair&lt;double, double&gt;&gt; ranges);
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebKit2WebProcessiosWebVideoFullscreenManagerh"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.h (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.h        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.h        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -67,6 +67,7 @@
</span><span class="cx">     virtual bool operator==(const EventListener&amp; rhs) override { return static_cast&lt;WebCore::EventListener*&gt;(this) == &amp;rhs; }
</span><span class="cx">     
</span><span class="cx">     // FullscreenInterface
</span><ins>+    virtual void resetMediaState() override;
</ins><span class="cx">     virtual void setDuration(double) override;
</span><span class="cx">     virtual void setCurrentTime(double currentTime, double anchorTime) override;
</span><span class="cx">     virtual void setRate(bool isPlaying, float playbackRate) override;
</span></span></pre></div>
<a id="branchessafari6001415branchSourceWebKit2WebProcessiosWebVideoFullscreenManagermm"></a>
<div class="modfile"><h4>Modified: branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.mm (180691 => 180692)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.mm        2015-02-26 19:51:52 UTC (rev 180691)
+++ branches/safari-600.1.4.15-branch/Source/WebKit2/WebProcess/ios/WebVideoFullscreenManager.mm        2015-02-26 19:56:49 UTC (rev 180692)
</span><span class="lines">@@ -114,6 +114,11 @@
</span><span class="cx">     m_page-&gt;send(Messages::WebVideoFullscreenManagerProxy::ExitFullscreen(clientRectForNode(node)), m_page-&gt;pageID());
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+void WebVideoFullscreenManager::resetMediaState()
+{
+    m_page-&gt;send(Messages::WebVideoFullscreenManagerProxy::ResetMediaState(), m_page-&gt;pageID());
+}
+    
</ins><span class="cx"> void WebVideoFullscreenManager::setDuration(double duration)
</span><span class="cx"> {
</span><span class="cx">     m_page-&gt;send(Messages::WebVideoFullscreenManagerProxy::SetDuration(duration), m_page-&gt;pageID());
</span></span></pre>
</div>
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