[Extensions] Use compiled feature files

extensions/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.
 
 {
   'includes': [
     'app_shell.gypi',
   ],
   'variables': {
     # Product name is used for Mac bundle.
@@ skipping 28 matching lines @@
         '<(DEPTH)/extensions/browser/api/api_registration.gyp:extensions_api_registration',
         '<(DEPTH)/extensions/common/api/api.gyp:extensions_api',
         '<(DEPTH)/extensions/extensions.gyp:extensions_browser',
         '<(DEPTH)/extensions/extensions.gyp:extensions_common',
         '<(DEPTH)/extensions/extensions.gyp:extensions_renderer',
         '<(DEPTH)/extensions/extensions.gyp:extensions_shell_and_test_pak',
         '<(DEPTH)/extensions/extensions.gyp:extensions_utility',
         '<(DEPTH)/extensions/extensions_resources.gyp:extensions_resources',
         '<(DEPTH)/extensions/shell/browser/api/api_registration.gyp:shell_api_registration',
         '<(DEPTH)/extensions/shell/common/api/api.gyp:shell_api',
+        '<(DEPTH)/extensions/shell/common/api/api.gyp:extensions_features',
         '<(DEPTH)/mojo/mojo_edk.gyp:mojo_system_impl',
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/third_party/WebKit/public/blink.gyp:blink',
         '<(DEPTH)/third_party/cld_2/cld_2.gyp:cld_2',
         '<(DEPTH)/ui/base/ime/ui_base_ime.gyp:ui_base_ime',
         '<(DEPTH)/ui/base/ui_base.gyp:ui_base',
         '<(DEPTH)/v8/src/v8.gyp:v8',
       ],
       'export_dependent_settings': [
         '<(DEPTH)/content/content.gyp:content_browser',
@@ skipping 341 matching lines @@
             '../../build/isolate.gypi',
           ],
           'sources': [
             'app_shell_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }