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

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index ccee420132b22e0c3d728fa3e1bfdd84122b67a3..3cabbcc18824d6a7ff0e4d5456b822092a089807 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -12904,6 +12904,12 @@ Some features may be unavailable.  Please check that the profile exists and you
         <message name="IDS_SHOW_DOWNLOADS_MAC" desc="The Mac menu item to show downloads in the window menu.">
           Downloads
         </message>
+        <message name="IDS_WINDOW_AUDIO_PLAYING_MAC" desc="The emoji to append to the title of a window showing audio is playing.">
+          🔊

[Robert Sesek, 2015/10/28 18:45:57]

Glad to see you were able to upload the GRD.

I'm wondering how this should work for RTL languages. I think we may want to
instead format the string using a placeholder, so that the icon doesn't always
appear at the end of the string. This would be something like:

<message …>
  <ph name="TAB_TITLE">$1<ex>The Title of the Tab</ex></ph> 🔊
</message>

+        </message>
+        <message name="IDS_WINDOW_AUDIO_MUTE_MAC" desc="The emoji to append to the title of a window showing audio is muted.">
+          🔇
+        </message>
         <message name="IDS_SHOW_EXTENSIONS_MAC" desc="The Mac menu item to show extensions in the window menu.">
           Extensions
         </message>