[Mac] Convert omnibox keyword hint to decoration.

chrome/chrome_browser.gypi

 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 860 matching lines @@
         'browser/cocoa/location_bar/autocomplete_text_field_editor.h',
         'browser/cocoa/location_bar/autocomplete_text_field_editor.mm',
         'browser/cocoa/location_bar/bubble_decoration.h',
         'browser/cocoa/location_bar/bubble_decoration.mm',
         'browser/cocoa/location_bar/content_setting_decoration.h',
         'browser/cocoa/location_bar/content_setting_decoration.mm',
         'browser/cocoa/location_bar/ev_bubble_decoration.h',
         'browser/cocoa/location_bar/ev_bubble_decoration.mm',
         'browser/cocoa/location_bar/image_decoration.h',
         'browser/cocoa/location_bar/image_decoration.mm',
+        'browser/cocoa/location_bar/keyword_hint_decoration.h',
+        'browser/cocoa/location_bar/keyword_hint_decoration.mm',
         'browser/cocoa/location_bar/location_bar_decoration.h',
         'browser/cocoa/location_bar/location_bar_decoration.mm',
         'browser/cocoa/location_bar/location_bar_view_mac.h',
         'browser/cocoa/location_bar/location_bar_view_mac.mm',
         'browser/cocoa/location_bar/location_icon_decoration.h',
         'browser/cocoa/location_bar/location_icon_decoration.mm',
         'browser/cocoa/location_bar/page_action_decoration.h',
         'browser/cocoa/location_bar/page_action_decoration.mm',
         'browser/cocoa/location_bar/selected_keyword_decoration.h',
         'browser/cocoa/location_bar/selected_keyword_decoration.mm',
@@ skipping 2744 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: