Removed emojis from generated_resources.grd and update the code.

chrome/browser/ui/cocoa/browser_window_controller.h

Index: chrome/browser/ui/cocoa/browser_window_controller.h
diff --git a/chrome/browser/ui/cocoa/browser_window_controller.h b/chrome/browser/ui/cocoa/browser_window_controller.h
index 957ba0c56a64169d9f83724ec559dfe881942559..671ab0e67d2461e96cda445dec8080e691e59efd 100644
--- a/chrome/browser/ui/cocoa/browser_window_controller.h
+++ b/chrome/browser/ui/cocoa/browser_window_controller.h
@@ -15,6 +15,7 @@
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
+#include "chrome/browser/ui/tabs/tab_utils.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bubble_controller.h"
 #import "chrome/browser/ui/cocoa/exclusive_access_bubble_window_controller.h"
@@ -370,6 +371,13 @@ class Command;
 - (void)executeExtensionCommand:(const std::string&)extension_id
                         command:(const extensions::Command&)command;
 
+// To set whether the window has a tab playing audio or muted audio playing.
+- (void)setMediaState:(TabMediaState)mediaState;
+
+// Returns current media state, determined by the media state of tabs, set by
+// UpdateMediaState.
+- (TabMediaState)mediaState;
+
 @end  // @interface BrowserWindowController