Apps V2 in Pepper: introduce singleton resource ExtensionsCommon.

chrome/chrome_renderer.gypi

 # Copyright (c) 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': 'renderer',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 193 matching lines @@
         'renderer/external_host_bindings.cc',
         'renderer/external_host_bindings.h',
         'renderer/external_extension.cc',
         'renderer/external_extension.h',
         'renderer/page_load_histograms.cc',
         'renderer/page_load_histograms.h',
         'renderer/pepper/chrome_ppapi_interfaces.cc',
         'renderer/pepper/chrome_ppapi_interfaces.h',
         'renderer/pepper/chrome_renderer_pepper_host_factory.cc',
         'renderer/pepper/chrome_renderer_pepper_host_factory.h',
+        'renderer/pepper/pepper_extensions_common_host.cc',
+        'renderer/pepper/pepper_extensions_common_host.h',
         'renderer/pepper/pepper_flash_font_file_host.cc',
         'renderer/pepper/pepper_flash_font_file_host.h',
         'renderer/pepper/pepper_flash_fullscreen_host.cc',
         'renderer/pepper/pepper_flash_fullscreen_host.h',
         'renderer/pepper/pepper_flash_menu_host.cc',
         'renderer/pepper/pepper_flash_menu_host.h',
         'renderer/pepper/pepper_flash_renderer_host.cc',
         'renderer/pepper/pepper_flash_renderer_host.h',
         'renderer/pepper/pepper_helper.cc',
         'renderer/pepper/pepper_helper.h',
@@ skipping 165 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }