Move the serial API to extensions/.

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 69 matching lines @@
         '<(DEPTH)/content/content.gyp:content',
         '<(DEPTH)/content/content.gyp:content_gpu',
         '<(DEPTH)/content/content.gyp:content_ppapi_plugin',
         '<(DEPTH)/content/content.gyp:content_worker',
         '<(DEPTH)/content/content_shell_and_tests.gyp:content_shell_lib',
         '<(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_resources.gyp:extensions_resources',
+        '<(DEPTH)/mojo/mojo.gyp:mojo_environment_chromium',
+        '<(DEPTH)/mojo/mojo.gyp:mojo_system_impl',
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/third_party/WebKit/public/blink.gyp:blink',
         '<(DEPTH)/ui/wm/wm.gyp:wm',
         '<(DEPTH)/v8/tools/gyp/v8.gyp:v8',
       ],
       'include_dirs': [
         '../..',
         '<(SHARED_INTERMEDIATE_DIR)',
         '<(SHARED_INTERMEDIATE_DIR)/apps/shell',
       ],
@@ skipping 110 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
 }