Create ExtensionsRendererClient.

apps/shell/app_shell.gyp

 # Copyright 2014 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 101 matching lines @@
         'browser/shell_extensions_browser_client.cc',
         'browser/shell_extensions_browser_client.h',
         'common/shell_app_runtime.cc',
         'common/shell_app_runtime.h',
         'common/shell_content_client.cc',
         'common/shell_content_client.h',
         'common/shell_extensions_client.cc',
         'common/shell_extensions_client.h',
         'renderer/shell_content_renderer_client.cc',
         'renderer/shell_content_renderer_client.h',
+        'renderer/shell_extensions_renderer_client.cc',
+        'renderer/shell_extensions_renderer_client.h',
       ],
     },
     {
       'target_name': 'app_shell',
       'type': 'executable',
       'defines!': ['CONTENT_IMPLEMENTATION'],
       'dependencies': [
         'app_shell_lib',
         'app_shell_pak',
       ],
@@ skipping 38 matching lines @@
         'browser/shell_browsertest.cc',
         'test/shell_test.h',
         'test/shell_test.cc',
         'test/shell_test_launcher_delegate.cc',
         'test/shell_test_launcher_delegate.h',
         'test/shell_tests_main.cc',
       ],
     },
   ],  # targets
 }