Add srcObject attribute of type MediaStream to HTMLMediaElement.

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index 575d49a288ce3b03acf25d4c71b3fde79d47a736..fc12ff263e0c955de50087d4d06351ce41188c3e 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -76,9 +76,11 @@ class WebExternalPopupMenuClient;
 class WebFormElement;
 class WebGeolocationClient;
 class WebInstalledAppClient;
+class WebMediaElementSource;
 class WebMediaPlayerClient;
 class WebMediaPlayerEncryptedMediaClient;
 class WebMediaSession;
+class WebMediaStream;
 class WebMIDIClient;
 class WebNotificationPermissionCallback;
 class WebPermissionClient;
@@ -114,7 +116,7 @@ public:
 
     // May return null.
     // WebContentDecryptionModule* may be null if one has not yet been set.
-    virtual WebMediaPlayer* createMediaPlayer(WebMediaPlayer::LoadType, const WebURL&, WebMediaPlayerClient*, WebMediaPlayerEncryptedMediaClient*, WebContentDecryptionModule*, const WebString& sinkId, WebMediaSession*) { return 0; }
+    virtual WebMediaPlayer* createMediaPlayer(WebMediaPlayer::LoadType, const WebMediaElementSource&, WebMediaPlayerClient*, WebMediaPlayerEncryptedMediaClient*, WebContentDecryptionModule*, const WebString& sinkId, WebMediaSession*) { return 0; }
 
     // May return null.
     virtual WebMediaSession* createMediaSession() { return 0; }