Revert "Indicate in the Window menu which Chrome window has an active sound playing"

chrome/browser/ui/cocoa/tabs/tab_strip_controller.h

Index: chrome/browser/ui/cocoa/tabs/tab_strip_controller.h
diff --git a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.h b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.h
index 0f1cc33252993715359dfbd11f92f37ad0a2e080..b51e69a8c501bf012d6e6b8be95ceca059a8bd6d 100644
--- a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.h
+++ b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.h
@@ -13,7 +13,6 @@
 #import "chrome/browser/ui/cocoa/tabs/tab_controller_target.h"
 #import "chrome/browser/ui/cocoa/url_drop_target.h"
 #include "chrome/browser/ui/tabs/hover_tab_selector.h"
-#include "chrome/browser/ui/tabs/tab_utils.h"
 
 @class CrTrackingArea;
 @class CustomWindowControlsView;
@@ -272,20 +271,6 @@ class WebContents;
 // Removes custom traffic light buttons from the tab strip. Idempotent.
 - (void)removeCustomWindowControls;
 
-// Gets the tab and the media state to check whether the window
-// media state should be updated or not. If the tab media state is
-// AUDIO_PLAYING, the window media state should be set to AUDIO_PLAYING.
-// If the tab media state is AUDIO_MUTING, this method would check if the
-// window has no other tab with state AUDIO_PLAYING, then the window
-// media state will be set to AUDIO_MUTING. If the tab media state is NONE,
-// this method checks if the window has no playing or muting tab, then window
-// media state will be set as NONE.
-- (void)updateWindowMediaState:(TabMediaState)mediaState
-                            on:(content::WebContents*)changed;
-
-// Returns the media state associated with the contents.
-- (TabMediaState)mediaStateForContents:(content::WebContents*)contents;
-
 @end
 
 @interface TabStripController(TestingAPI)