Implement media cast buttons

Source/platform/graphics/media/MediaPlayer.h

Index: Source/platform/graphics/media/MediaPlayer.h
diff --git a/Source/platform/graphics/media/MediaPlayer.h b/Source/platform/graphics/media/MediaPlayer.h
index 1b3afa89dc90df42d4ab3b446529a28a2479da59..38106bdbba56a230556904fc638f98582b97f657 100644
--- a/Source/platform/graphics/media/MediaPlayer.h
+++ b/Source/platform/graphics/media/MediaPlayer.h
@@ -67,6 +67,12 @@ public:
 
     virtual void mediaPlayerRequestSeek(double) = 0;
 
+    virtual void mediaPlayerRemoteRouteAvailabilityChanged(bool) = 0;

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:34]

nit: New methods should not be added to this interface because it is going away.
Please use mediaElement() directly in WebMediaPlayerClientImpl and make the
method names match the names you use for WebMediaPlayerClient.

[aberent, 2014/08/22 14:08:34]

Done.

+
+    virtual void mediaPlayerConnectedToRemoteDevice() = 0;
+
+    virtual void mediaPlayerDisconnectedFromRemoteDevice() = 0;
+
     // The URL for video poster image.
     // FIXME: Remove this when WebMediaPlayerClientImpl::loadInternal does not depend on it.
     virtual KURL mediaPlayerPosterURL() = 0;
@@ -101,6 +107,9 @@ public:
 
     virtual void load(blink::WebMediaPlayer::LoadType, const String& url, blink::WebMediaPlayer::CORSMode) = 0;
 
+    virtual void requestRemotePlayback() = 0;

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:35]

nit: New methods should not be added to this interface. It is going away.
HTMLMediaElement should call the WebMediaPlayer directly.

[aberent, 2014/08/22 14:08:34]

Done.

+    virtual void requestRemotePlaybackControl() = 0;
+
     enum Preload { None, MetaData, Auto };
     virtual void setPreload(Preload) = 0;