Create ExtensionsRendererClient.

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 47 matching lines @@
         'renderer/extensions/app_runtime_custom_bindings.cc',
         'renderer/extensions/app_runtime_custom_bindings.h',
         'renderer/extensions/app_window_custom_bindings.cc',
         'renderer/extensions/app_window_custom_bindings.h',
         'renderer/extensions/binding_generating_native_handler.cc',
         'renderer/extensions/binding_generating_native_handler.h',
         'renderer/extensions/blob_native_handler.cc',
         'renderer/extensions/blob_native_handler.h',
         'renderer/extensions/cast_streaming_native_handler.cc',
         'renderer/extensions/cast_streaming_native_handler.h',
+        'renderer/extensions/chrome_extensions_renderer_client.cc',
+        'renderer/extensions/chrome_extensions_renderer_client.h',
         'renderer/extensions/chrome_v8_context.cc',
         'renderer/extensions/chrome_v8_context.h',
         'renderer/extensions/chrome_v8_context_set.cc',
         'renderer/extensions/chrome_v8_context_set.h',
         'renderer/extensions/chrome_v8_extension.cc',
         'renderer/extensions/chrome_v8_extension.h',
         'renderer/extensions/chrome_v8_extension_handler.cc',
         'renderer/extensions/chrome_v8_extension_handler.h',
         'renderer/extensions/content_watcher.cc',
         'renderer/extensions/content_watcher.h',
@@ skipping 386 matching lines @@
         }],
         ['enable_printing!=0', {
           'dependencies': [
             '../printing/printing.gyp:printing',
           ],
         }],
       ],
     },
   ],
 }