Add extensions/common/stack_frame_unittest.cc to extensions.gyp.

extensions/extensions.gyp

 # Copyright 2013 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 1093 matching lines @@
         'common/manifest_handler_unittest.cc',
         'common/manifest_handlers/externally_connectable_unittest.cc',
         'common/manifest_handlers/file_handler_manifest_unittest.cc',
         'common/manifest_handlers/shared_module_manifest_unittest.cc',
         'common/message_bundle_unittest.cc',
         'common/one_shot_event_unittest.cc',
         'common/permissions/api_permission_set_unittest.cc',
         'common/permissions/manifest_permission_set_unittest.cc',
         'common/permissions/socket_permission_unittest.cc',
         'common/permissions/usb_device_permission_unittest.cc',
+        'common/stack_frame_unittest.cc',
         'common/url_pattern_set_unittest.cc',
         'common/url_pattern_unittest.cc',
         'common/user_script_unittest.cc',
         'renderer/activity_log_converter_strategy_unittest.cc',
         'renderer/api/serial/data_receiver_unittest.cc',
         'renderer/api/serial/data_sender_unittest.cc',
         'renderer/api/serial/serial_api_unittest.cc',
         'renderer/api_test_base.cc',
         'renderer/api_test_base.h',
         'renderer/api_test_base_unittest.cc',
@@ skipping 28 matching lines @@
           'browser/api/cast_channel/logging.proto'
       ],
       'variables': {
           'proto_in_dir': 'browser/api/cast_channel',
           'proto_out_dir': 'extensions/browser/api/cast_channel',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ]
 }