Implement media cast buttons

Source/core/html/shadow/MediaControls.h

Index: Source/core/html/shadow/MediaControls.h
diff --git a/Source/core/html/shadow/MediaControls.h b/Source/core/html/shadow/MediaControls.h
index 21c767ae56e91e6bcacca6691607cfd461f32429..01b2ca00c3f155747b2641114e71e10b829a04ce 100644
--- a/Source/core/html/shadow/MediaControls.h
+++ b/Source/core/html/shadow/MediaControls.h
@@ -64,10 +64,15 @@ public:
     void enteredFullscreen();
     void exitedFullscreen();
 
+    void startedCasting();
+    void stoppedCasting();
+
     void updateTextTrackDisplay();
 
     void mediaElementFocused();
 
+    void refreshCastButtonVisibility();

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

nit: Put this near the other functions related to casting.

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

Done.

+
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
@@ -121,6 +126,8 @@ private:
     RawPtrWillBeMember<MediaControlVolumeSliderElement> m_volumeSlider;
     RawPtrWillBeMember<MediaControlToggleClosedCaptionsButtonElement> m_toggleClosedCaptionsButton;
     RawPtrWillBeMember<MediaControlFullscreenButtonElement> m_fullScreenButton;
+    RawPtrWillBeMember<MediaControlCastButtonElement> m_castButton;
+    RawPtrWillBeMember<MediaControlOverlayCastButtonElement> m_overlayCastButton;
     RawPtrWillBeMember<MediaControlTimeRemainingDisplayElement> m_durationDisplay;
     RawPtrWillBeMember<MediaControlPanelEnclosureElement> m_enclosure;