Remove MediaControls methods needed for the Cast button

third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h

Index: third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h
diff --git a/third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h b/third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h
index c640a8e01091c018eb116d0ac4552c3963fbad6b..0d29cff51bc373f477080598d07540dbd23334e4 100644
--- a/third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h
+++ b/third_party/WebKit/Source/modules/media_controls/elements/MediaControlCastButtonElement.h
@@ -20,7 +20,9 @@ class MediaControlCastButtonElement final : public MediaControlInputElement {
   // This MUST be called for cast button elements that are overlay elements.
   void TryShowOverlay();
 
-  void SetIsPlayingRemotely(bool);
+  // TODO(avayvod): replace with the button listening to the state change
+  // events.
+  void UpdateDisplayType();
 
   // MediaControlInputElement overrides.
   bool WillRespondToMouseClickEvents() override;
@@ -42,6 +44,8 @@ class MediaControlCastButtonElement final : public MediaControlInputElement {
 
   void RecordMetrics(CastOverlayMetrics);
 
+  bool IsPlayingRemotely() const;
+
   bool is_overlay_button_;
 
   // UMA related boolean. They are used to prevent counting something twice