InstantExtended: Remove overlay control code.

chrome/chrome_browser.gypi

 # Copyright 2012 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': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1722 matching lines @@
         'browser/safe_browsing/two_phase_uploader.cc',
         'browser/safe_browsing/two_phase_uploader.h',
         'browser/safe_browsing/ui_manager.cc',
         'browser/safe_browsing/ui_manager.h',
         'browser/safe_json_parser.cc',
         'browser/safe_json_parser.h',
         'browser/screensaver_window_finder_x11.cc',
         'browser/screensaver_window_finder_x11.h',
         'browser/search/iframe_source.cc',
         'browser/search/iframe_source.h',
-        'browser/search/instant_extended_context_menu_observer.cc',
-        'browser/search/instant_extended_context_menu_observer.h',
         'browser/search/instant_io_context.cc',
         'browser/search/instant_io_context.h',
         'browser/search/instant_service.cc',
         'browser/search/instant_service.h',
         'browser/search/instant_service_factory.cc',
         'browser/search/instant_service_factory.h',
         'browser/search/instant_service_observer.h',
         'browser/search/local_ntp_source.cc',
         'browser/search/local_ntp_source.h',
         'browser/search/most_visited_iframe_source.cc',
@@ skipping 1622 matching lines @@
             'package_name': 'org/chromium/chrome/browser/ui/toolbar',
             'template_deps': ['browser/ui/toolbar/toolbar_model_security_level_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }