Add a string resource for set wallpaper from context menu.

BUG=None
TEST=None

Review URL: https://chromiumcodereview.appspot.com/9838087

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@128640 0039d316-1c4b-4281-b951-d872f2087c98

ash/ash_strings.grd

@@ -174,6 +174,10 @@ This file contains the strings for ash.
         Overflow Button
       </message>
 
+      <message name="IDS_AURA_SET_DESKTOP_WALLPAPER" desc="The label used for change wallpaper in context menu">
+        Set Wallpaper...
+      </message>
+
       <message name="IDS_FRAME_MAXIMIZE_BUTTON_TOOLTIP" desc="Tooltip for the maximize/restore button in window frames in aura">
         Pull down to minimize, left or right to tile
       </message>