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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/202425">202425</a></dd>
<dt>Author</dt> <dd>jer.noble@apple.com</dd>
<dt>Date</dt> <dd>2016-06-24 10:12:10 -0700 (Fri, 24 Jun 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Playback controls refer to wrong element when playing multiple items in a page.
https://bugs.webkit.org/show_bug.cgi?id=159076
&lt;rdar://problem/26953532&gt;

Reviewed by Beth Dakin.

Source/WebCore:

Use a new method PlatformMediaSessionManager::currentSessionMatching() to get
the most recently active media element which qualifies for playback controls.

* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::updatePlaybackControlsManager): Get the most recently active session.
* html/MediaElementSession.cpp:
(WebCore::MediaElementSession::canControlControlsManager): Make virtual; no longer takes an element.
* html/MediaElementSession.h:
(isType): Allow downcasting from PlatformMediaSession -&gt; MediaElementSession.
* page/ChromeClient.h:
* platform/audio/PlatformMediaSession.h:
(WebCore::PlatformMediaSession::canControlControlsManager): Defaults to false;
* platform/audio/PlatformMediaSessionManager.cpp:
(WebCore::PlatformMediaSessionManager::currentSessionMatching): Added.
* platform/audio/PlatformMediaSessionManager.h:

Source/WebKit/mac:

clearPlaybackControlsManager() no longer takes a parameter.

* WebCoreSupport/WebChromeClient.h:
* WebCoreSupport/WebChromeClient.mm:
(WebChromeClient::clearPlaybackControlsManager):
* WebView/WebView.mm:
(-[WebView _clearPlaybackControlsManager]): Renamed from _clearPlaybackControlsManagerForMediaElement:.
* WebView/WebViewInternal.h:

Source/WebKit2:

clearPlaybackControlsManager() no longer takes a parameter.

* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::clearPlaybackControlsManager):
* WebProcess/WebCoreSupport/WebChromeClient.h:
* WebProcess/cocoa/WebPlaybackSessionManager.h:
* WebProcess/cocoa/WebPlaybackSessionManager.mm:
(WebKit::WebPlaybackSessionManager::setUpPlaybackControlsManager): Make sure to removeClientForContext()
    if the old context refers to a live media element.
(WebKit::WebPlaybackSessionManager::clearPlaybackControlsManager):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorehtmlHTMLMediaElementcpp">trunk/Source/WebCore/html/HTMLMediaElement.cpp</a></li>
<li><a href="#trunkSourceWebCorehtmlMediaElementSessioncpp">trunk/Source/WebCore/html/MediaElementSession.cpp</a></li>
<li><a href="#trunkSourceWebCorehtmlMediaElementSessionh">trunk/Source/WebCore/html/MediaElementSession.h</a></li>
<li><a href="#trunkSourceWebCorepageChromeClienth">trunk/Source/WebCore/page/ChromeClient.h</a></li>
<li><a href="#trunkSourceWebCoreplatformaudioPlatformMediaSessionh">trunk/Source/WebCore/platform/audio/PlatformMediaSession.h</a></li>
<li><a href="#trunkSourceWebCoreplatformaudioPlatformMediaSessionManagercpp">trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformaudioPlatformMediaSessionManagerh">trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.h</a></li>
<li><a href="#trunkSourceWebKitmacChangeLog">trunk/Source/WebKit/mac/ChangeLog</a></li>
<li><a href="#trunkSourceWebKitmacWebCoreSupportWebChromeClienth">trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.h</a></li>
<li><a href="#trunkSourceWebKitmacWebCoreSupportWebChromeClientmm">trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.mm</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebViewmm">trunk/Source/WebKit/mac/WebView/WebView.mm</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebViewInternalh">trunk/Source/WebKit/mac/WebView/WebViewInternal.h</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClientcpp">trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClienth">trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h</a></li>
<li><a href="#trunkSourceWebKit2WebProcesscocoaWebPlaybackSessionManagerh">trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.h</a></li>
<li><a href="#trunkSourceWebKit2WebProcesscocoaWebPlaybackSessionManagermm">trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/ChangeLog        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -1,3 +1,27 @@
</span><ins>+2016-06-24  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Playback controls refer to wrong element when playing multiple items in a page.
+        https://bugs.webkit.org/show_bug.cgi?id=159076
+        &lt;rdar://problem/26953532&gt;
+
+        Reviewed by Beth Dakin.
+
+        Use a new method PlatformMediaSessionManager::currentSessionMatching() to get
+        the most recently active media element which qualifies for playback controls.
+
+        * html/HTMLMediaElement.cpp:
+        (WebCore::HTMLMediaElement::updatePlaybackControlsManager): Get the most recently active session.
+        * html/MediaElementSession.cpp:
+        (WebCore::MediaElementSession::canControlControlsManager): Make virtual; no longer takes an element.
+        * html/MediaElementSession.h:
+        (isType): Allow downcasting from PlatformMediaSession -&gt; MediaElementSession.
+        * page/ChromeClient.h:
+        * platform/audio/PlatformMediaSession.h:
+        (WebCore::PlatformMediaSession::canControlControlsManager): Defaults to false;
+        * platform/audio/PlatformMediaSessionManager.cpp:
+        (WebCore::PlatformMediaSessionManager::currentSessionMatching): Added.
+        * platform/audio/PlatformMediaSessionManager.h:
+
</ins><span class="cx"> 2016-06-24  Dan Bernstein  &lt;mitz@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Fixed the macOS build.
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlHTMLMediaElementcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/HTMLMediaElement.cpp (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/HTMLMediaElement.cpp        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/html/HTMLMediaElement.cpp        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -7090,10 +7090,14 @@
</span><span class="cx">     if (!page)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><del>-    if (m_mediaSession-&gt;canControlControlsManager(*this))
-        page-&gt;chrome().client().setUpPlaybackControlsManager(*this);
</del><ins>+    PlatformMediaSession* session = PlatformMediaSessionManager::sharedManager().currentSessionMatching([] (const PlatformMediaSession&amp; session) {
+        return session.canControlControlsManager();
+    });
+
+    if (!is&lt;MediaElementSession&gt;(session))
+        page-&gt;chrome().client().clearPlaybackControlsManager();
</ins><span class="cx">     else
</span><del>-        page-&gt;chrome().client().clearPlaybackControlsManager(*this);
</del><ins>+        page-&gt;chrome().client().setUpPlaybackControlsManager(downcast&lt;MediaElementSession&gt;(session)-&gt;element());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> bool HTMLMediaElement::shouldOverrideBackgroundLoadingRestriction() const
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlMediaElementSessioncpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/MediaElementSession.cpp (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/MediaElementSession.cpp        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/html/MediaElementSession.cpp        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -211,45 +211,45 @@
</span><span class="cx">     return true;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool MediaElementSession::canControlControlsManager(const HTMLMediaElement&amp; element) const
</del><ins>+bool MediaElementSession::canControlControlsManager() const
</ins><span class="cx"> {
</span><del>-    if (!element.hasAudio()) {
</del><ins>+    if (!m_element.hasAudio()) {
</ins><span class="cx">         LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: No audio&quot;);
</span><span class="cx">         return false;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (element.muted()) {
</del><ins>+    if (m_element.muted()) {
</ins><span class="cx">         LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: Muted&quot;);
</span><span class="cx">         return false;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (element.ended()) {
</del><ins>+    if (m_element.ended()) {
</ins><span class="cx">         LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: Ended&quot;);
</span><span class="cx">         return false;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (element.document().activeDOMObjectsAreSuspended()) {
</del><ins>+    if (m_element.document().activeDOMObjectsAreSuspended()) {
</ins><span class="cx">         LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: activeDOMObjectsAreSuspended()&quot;);
</span><span class="cx">         return false;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (!playbackPermitted(element)) {
</del><ins>+    if (!playbackPermitted(m_element)) {
</ins><span class="cx">         LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: Playback not permitted&quot;);
</span><span class="cx">         return false;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (element.isVideo()) {
-        if (!element.renderer()) {
</del><ins>+    if (m_element.isVideo()) {
+        if (!m_element.renderer()) {
</ins><span class="cx">             LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: No renderer&quot;);
</span><span class="cx">             return false;
</span><span class="cx">         }
</span><span class="cx"> 
</span><del>-        if (!element.hasVideo()) {
</del><ins>+        if (!m_element.hasVideo()) {
</ins><span class="cx">             LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning FALSE: No video&quot;);
</span><span class="cx">             return false;
</span><span class="cx">         }
</span><span class="cx"> 
</span><del>-        if (isElementLargeEnoughForMainContent(element)) {
</del><ins>+        if (isElementLargeEnoughForMainContent(m_element)) {
</ins><span class="cx">             LOG(Media, &quot;MediaElementSession::canControlControlsManager - returning TRUE: Is main content&quot;);
</span><span class="cx">             return true;
</span><span class="cx">         }
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlMediaElementSessionh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/MediaElementSession.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/MediaElementSession.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/html/MediaElementSession.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -31,6 +31,7 @@
</span><span class="cx"> #include &quot;MediaPlayer.h&quot;
</span><span class="cx"> #include &quot;PlatformMediaSession.h&quot;
</span><span class="cx"> #include &quot;Timer.h&quot;
</span><ins>+#include &lt;wtf/TypeCasts.h&gt;
</ins><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> 
</span><span class="lines">@@ -53,7 +54,7 @@
</span><span class="cx">     bool pageAllowsDataLoading(const HTMLMediaElement&amp;) const;
</span><span class="cx">     bool pageAllowsPlaybackAfterResuming(const HTMLMediaElement&amp;) const;
</span><span class="cx"> 
</span><del>-    bool canControlControlsManager(const HTMLMediaElement&amp;) const;
</del><ins>+    bool canControlControlsManager() const override;
</ins><span class="cx"> 
</span><span class="cx"> #if ENABLE(WIRELESS_PLAYBACK_TARGET)
</span><span class="cx">     void showPlaybackTargetPicker(const HTMLMediaElement&amp;);
</span><span class="lines">@@ -107,6 +108,8 @@
</span><span class="cx">     size_t maximumMediaSourceBufferSize(const SourceBuffer&amp;) const;
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+    HTMLMediaElement&amp; element() const { return m_element; }
+
</ins><span class="cx"> private:
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(WIRELESS_PLAYBACK_TARGET)
</span><span class="lines">@@ -142,6 +145,10 @@
</span><span class="cx"> 
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-#endif // MediaElementSession_h
</del><ins>+SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::MediaElementSession)
+static bool isType(const WebCore::PlatformMediaSession&amp; session) { return session.mediaType() == WebCore::PlatformMediaSession::Video || session.mediaType() == WebCore::PlatformMediaSession::Audio; }
+SPECIALIZE_TYPE_TRAITS_END()
</ins><span class="cx"> 
</span><span class="cx"> #endif // ENABLE(VIDEO)
</span><ins>+
+#endif // MediaElementSession_h
</ins></span></pre></div>
<a id="trunkSourceWebCorepageChromeClienth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/ChromeClient.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/ChromeClient.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/page/ChromeClient.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -342,7 +342,7 @@
</span><span class="cx"> #if ENABLE(VIDEO)
</span><span class="cx">     virtual void enterVideoFullscreenForVideoElement(HTMLVideoElement&amp;, HTMLMediaElementEnums::VideoFullscreenMode) { }
</span><span class="cx">     virtual void setUpPlaybackControlsManager(HTMLMediaElement&amp;) { }
</span><del>-    virtual void clearPlaybackControlsManager(HTMLMediaElement&amp;) { }
</del><ins>+    virtual void clearPlaybackControlsManager() { }
</ins><span class="cx"> #endif
</span><span class="cx">     virtual void exitVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&amp;) { }
</span><span class="cx">     virtual void exitVideoFullscreenToModeWithoutAnimation(WebCore::HTMLVideoElement&amp;, HTMLMediaElementEnums::VideoFullscreenMode /*targetMode*/) { }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudioPlatformMediaSessionh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/PlatformMediaSession.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/PlatformMediaSession.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/platform/audio/PlatformMediaSession.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -139,6 +139,7 @@
</span><span class="cx"> 
</span><span class="cx">     bool shouldOverrideBackgroundLoadingRestriction() const;
</span><span class="cx"> 
</span><ins>+    virtual bool canControlControlsManager() const { return false; }
</ins><span class="cx">     virtual bool canPlayToWirelessPlaybackTarget() const { return false; }
</span><span class="cx">     virtual bool isPlayingToWirelessPlaybackTarget() const { return m_isPlayingToWirelessPlaybackTarget; }
</span><span class="cx">     void isPlayingToWirelessPlaybackTargetChanged(bool);
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudioPlatformMediaSessionManagercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.cpp (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.cpp        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.cpp        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -277,6 +277,15 @@
</span><span class="cx"> 
</span><span class="cx">     return m_sessions[0];
</span><span class="cx"> }
</span><ins>+
+PlatformMediaSession* PlatformMediaSessionManager::currentSessionMatching(std::function&lt;bool(const PlatformMediaSession &amp;)&gt; filter)
+{
+    for (auto&amp; session : m_sessions) {
+        if (filter(*session))
+            return session;
+    }
+    return nullptr;
+}
</ins><span class="cx">     
</span><span class="cx"> bool PlatformMediaSessionManager::sessionCanLoadMedia(const PlatformMediaSession&amp; session) const
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudioPlatformMediaSessionManagerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebCore/platform/audio/PlatformMediaSessionManager.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -92,6 +92,8 @@
</span><span class="cx">     void setCurrentSession(PlatformMediaSession&amp;);
</span><span class="cx">     PlatformMediaSession* currentSession();
</span><span class="cx"> 
</span><ins>+    PlatformMediaSession* currentSessionMatching(std::function&lt;bool(const PlatformMediaSession&amp;)&gt;);
+
</ins><span class="cx">     void sessionIsPlayingToWirelessPlaybackTargetChanged(PlatformMediaSession&amp;);
</span><span class="cx">     void sessionCanProduceAudioChanged(PlatformMediaSession&amp;);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKitmacChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/ChangeLog (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/ChangeLog        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit/mac/ChangeLog        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -1,3 +1,20 @@
</span><ins>+2016-06-24  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Playback controls refer to wrong element when playing multiple items in a page.
+        https://bugs.webkit.org/show_bug.cgi?id=159076
+        &lt;rdar://problem/26953532&gt;
+
+        Reviewed by Beth Dakin.
+
+        clearPlaybackControlsManager() no longer takes a parameter.
+
+        * WebCoreSupport/WebChromeClient.h:
+        * WebCoreSupport/WebChromeClient.mm:
+        (WebChromeClient::clearPlaybackControlsManager):
+        * WebView/WebView.mm:
+        (-[WebView _clearPlaybackControlsManager]): Renamed from _clearPlaybackControlsManagerForMediaElement:.
+        * WebView/WebViewInternal.h:
+
</ins><span class="cx"> 2016-06-23  Alex Christensen  &lt;achristensen@webkit.org&gt;
</span><span class="cx"> 
</span><span class="cx">         Remove unused didCancelAuthenticationChallenge
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebCoreSupportWebChromeClienth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -177,7 +177,7 @@
</span><span class="cx"> #if ENABLE(VIDEO)
</span><span class="cx"> #if PLATFORM(MAC) &amp;&amp; ENABLE(VIDEO_PRESENTATION_MODE)
</span><span class="cx">     void setUpPlaybackControlsManager(WebCore::HTMLMediaElement&amp;) override;
</span><del>-    void clearPlaybackControlsManager(WebCore::HTMLMediaElement&amp;) override;
</del><ins>+    void clearPlaybackControlsManager() override;
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     bool supportsVideoFullscreen(WebCore::HTMLMediaElementEnums::VideoFullscreenMode) override;
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebCoreSupportWebChromeClientmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.mm (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.mm        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit/mac/WebCoreSupport/WebChromeClient.mm        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -939,9 +939,9 @@
</span><span class="cx">     [m_webView _setUpPlaybackControlsManagerForMediaElement:element];
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WebChromeClient::clearPlaybackControlsManager(HTMLMediaElement&amp; element)
</del><ins>+void WebChromeClient::clearPlaybackControlsManager()
</ins><span class="cx"> {
</span><del>-    [m_webView _clearPlaybackControlsManagerForMediaElement:element];
</del><ins>+    [m_webView _clearPlaybackControlsManager];
</ins><span class="cx"> }
</span><span class="cx"> #endif // PLATFORM(MAC)
</span><span class="cx"> #endif // ENABLE(VIDEO)
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebView.mm (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebView.mm        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit/mac/WebView/WebView.mm        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -8612,9 +8612,9 @@
</span><span class="cx">     [self updateWebViewAdditions];
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_clearPlaybackControlsManagerForMediaElement:(WebCore::HTMLMediaElement&amp;)mediaElement
</del><ins>+- (void)_clearPlaybackControlsManager
</ins><span class="cx"> {
</span><del>-    if (!_private-&gt;playbackSessionModel || _private-&gt;playbackSessionModel-&gt;mediaElement() != &amp;mediaElement)
</del><ins>+    if (!_private-&gt;playbackSessionModel || !_private-&gt;playbackSessionModel-&gt;mediaElement())
</ins><span class="cx">         return;
</span><span class="cx"> 
</span><span class="cx">     _private-&gt;playbackSessionModel-&gt;setMediaElement(nullptr);
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebViewInternalh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebViewInternal.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebViewInternal.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit/mac/WebView/WebViewInternal.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -255,7 +255,7 @@
</span><span class="cx"> #if PLATFORM(MAC) &amp;&amp; ENABLE(VIDEO_PRESENTATION_MODE)
</span><span class="cx"> - (BOOL)_hasActiveVideoForControlsInterface;
</span><span class="cx"> - (void)_setUpPlaybackControlsManagerForMediaElement:(WebCore::HTMLMediaElement&amp;)mediaElement;
</span><del>-- (void)_clearPlaybackControlsManagerForMediaElement:(WebCore::HTMLMediaElement&amp;)mediaElement;
</del><ins>+- (void)_clearPlaybackControlsManager;
</ins><span class="cx"> #endif
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit2/ChangeLog        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2016-06-24  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Playback controls refer to wrong element when playing multiple items in a page.
+        https://bugs.webkit.org/show_bug.cgi?id=159076
+        &lt;rdar://problem/26953532&gt;
+
+        Reviewed by Beth Dakin.
+
+        clearPlaybackControlsManager() no longer takes a parameter.
+
+        * WebProcess/WebCoreSupport/WebChromeClient.cpp:
+        (WebKit::WebChromeClient::clearPlaybackControlsManager):
+        * WebProcess/WebCoreSupport/WebChromeClient.h:
+        * WebProcess/cocoa/WebPlaybackSessionManager.h:
+        * WebProcess/cocoa/WebPlaybackSessionManager.mm:
+        (WebKit::WebPlaybackSessionManager::setUpPlaybackControlsManager): Make sure to removeClientForContext()
+            if the old context refers to a live media element.
+        (WebKit::WebPlaybackSessionManager::clearPlaybackControlsManager):
+
</ins><span class="cx"> 2016-06-24  Brady Eidson  &lt;beidson@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         IDB tests crashing attempting to register sandbox extensions for blob files.
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClientcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -856,9 +856,9 @@
</span><span class="cx">     m_page-&gt;playbackSessionManager().setUpPlaybackControlsManager(mediaElement);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WebChromeClient::clearPlaybackControlsManager(WebCore::HTMLMediaElement&amp; mediaElement)
</del><ins>+void WebChromeClient::clearPlaybackControlsManager()
</ins><span class="cx"> {
</span><del>-    m_page-&gt;playbackSessionManager().clearPlaybackControlsManager(mediaElement);
</del><ins>+    m_page-&gt;playbackSessionManager().clearPlaybackControlsManager();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void WebChromeClient::enterVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&amp; videoElement, WebCore::HTMLMediaElementEnums::VideoFullscreenMode mode)
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebCoreSupportWebChromeClienth"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -244,7 +244,7 @@
</span><span class="cx"> #if (PLATFORM(IOS) &amp;&amp; HAVE(AVKIT)) || (PLATFORM(MAC) &amp;&amp; ENABLE(VIDEO_PRESENTATION_MODE))
</span><span class="cx">     bool supportsVideoFullscreen(WebCore::HTMLMediaElementEnums::VideoFullscreenMode) override;
</span><span class="cx">     void setUpPlaybackControlsManager(WebCore::HTMLMediaElement&amp;) override;
</span><del>-    void clearPlaybackControlsManager(WebCore::HTMLMediaElement&amp;) override;
</del><ins>+    void clearPlaybackControlsManager() override;
</ins><span class="cx">     void enterVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&amp;, WebCore::HTMLMediaElementEnums::VideoFullscreenMode) override;
</span><span class="cx">     void exitVideoFullscreenForVideoElement(WebCore::HTMLVideoElement&amp;) override;
</span><span class="cx"> #if PLATFORM(MAC) &amp;&amp; ENABLE(VIDEO_PRESENTATION_MODE)
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcesscocoaWebPlaybackSessionManagerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.h (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.h        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.h        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -94,7 +94,7 @@
</span><span class="cx">     void didReceiveMessage(IPC::Connection&amp;, IPC::MessageDecoder&amp;) final;
</span><span class="cx"> 
</span><span class="cx">     void setUpPlaybackControlsManager(WebCore::HTMLMediaElement&amp;);
</span><del>-    void clearPlaybackControlsManager(WebCore::HTMLMediaElement&amp;);
</del><ins>+    void clearPlaybackControlsManager();
</ins><span class="cx">     uint64_t contextIdForMediaElement(WebCore::HTMLMediaElement&amp;);
</span><span class="cx"> 
</span><span class="cx"> protected:
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcesscocoaWebPlaybackSessionManagermm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.mm (202424 => 202425)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.mm        2016-06-24 17:05:46 UTC (rev 202424)
+++ trunk/Source/WebKit2/WebProcess/cocoa/WebPlaybackSessionManager.mm        2016-06-24 17:12:10 UTC (rev 202425)
</span><span class="lines">@@ -246,6 +246,8 @@
</span><span class="cx">     } else {
</span><span class="cx">         auto addResult = m_mediaElements.ensure(&amp;mediaElement, [&amp;] { return nextContextId(); });
</span><span class="cx">         auto contextId = addResult.iterator-&gt;value;
</span><ins>+        if (m_controlsManagerContextId)
+            removeClientForContext(m_controlsManagerContextId);
</ins><span class="cx">         m_controlsManagerContextId = contextId;
</span><span class="cx">         ensureModel(contextId).setMediaElement(&amp;mediaElement);
</span><span class="cx">     }
</span><span class="lines">@@ -255,16 +257,12 @@
</span><span class="cx"> #endif
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WebPlaybackSessionManager::clearPlaybackControlsManager(WebCore::HTMLMediaElement&amp; mediaElement)
</del><ins>+void WebPlaybackSessionManager::clearPlaybackControlsManager()
</ins><span class="cx"> {
</span><span class="cx"> #if PLATFORM(MAC)
</span><del>-    auto foundIterator = m_mediaElements.find(&amp;mediaElement);
-    if (foundIterator == m_mediaElements.end())
</del><ins>+    if (!m_controlsManagerContextId)
</ins><span class="cx">         return;
</span><span class="cx"> 
</span><del>-    if (!m_controlsManagerContextId || m_controlsManagerContextId != foundIterator-&gt;value)
-        return;
-
</del><span class="cx">     removeClientForContext(m_controlsManagerContextId);
</span><span class="cx">     m_controlsManagerContextId = 0;
</span><span class="cx">     m_page-&gt;send(Messages::WebPlaybackSessionManagerProxy::ClearPlaybackControlsManager(), m_page-&gt;pageID());
</span></span></pre>
</div>
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