Add srcObject attribute of type MediaStream to HTMLMediaElement.

third_party/WebKit/Source/core/html/HTMLMediaElement.h

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.h b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
index 2a0ec2e9f3a4f7dae2749d73f9c5738d08013f5e..51d0993488d4985c9d8cc5b03f2c0f6c4fcf69ba 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
@@ -108,6 +108,7 @@ public:
     // network state
     void setSrc(const AtomicString&);
     const KURL& currentSrc() const { return m_currentSrc; }
+    void setSrcObjectURL(const AtomicString&);
 
     enum NetworkState { NETWORK_EMPTY, NETWORK_IDLE, NETWORK_LOADING, NETWORK_NO_SOURCE };
     NetworkState getNetworkState() const;
@@ -355,6 +356,9 @@ private:
     void setPlayerPreload();
     WebMediaPlayer::LoadType loadType() const;
     void scheduleNextSourceChild();
+    void loadSourceFromObject();
+    void loadSourceFromAttribute();
+    void loadSourceFromURL(const AtomicString&);
     void loadNextSourceChild();
     void clearMediaPlayer();
     void clearMediaPlayerAndAudioSourceProviderClientWithoutLocking();
@@ -499,10 +503,11 @@ private:
     double m_defaultPlaybackStartPosition;
 
     // Loading state.
-    enum LoadState { WaitingForSource, LoadingFromSrcAttr, LoadingFromSourceElement };
+    enum LoadState { WaitingForSource, LoadingFromSrcObject, LoadingFromSrcAttr, LoadingFromSourceElement };
     LoadState m_loadState;
     RefPtrWillBeMember<HTMLSourceElement> m_currentSourceNode;
     RefPtrWillBeMember<Node> m_nextChildNodeToConsider;
+    AtomicString m_srcObjectURL;
 
     // "Deferred loading" state (for preload=none).
     enum DeferredLoadState {