Implement webview.captureVisibleRegion()

extensions/extensions.gypi

 # Copyright 2015 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': {
     'extensions_common_constants_sources': [
       'common/constants.cc',
       'common/constants.h',
     ],
@@ skipping 252 matching lines @@
       'browser/api/bluetooth/bluetooth_extension_function.cc',
       'browser/api/bluetooth/bluetooth_extension_function.h',
       'browser/api/bluetooth/bluetooth_private_api.cc',
       'browser/api/bluetooth/bluetooth_private_api.h',
       'browser/api/bluetooth_socket/bluetooth_api_socket.cc',
       'browser/api/bluetooth_socket/bluetooth_api_socket.h',
       'browser/api/bluetooth_socket/bluetooth_socket_api.cc',
       'browser/api/bluetooth_socket/bluetooth_socket_api.h',
       'browser/api/bluetooth_socket/bluetooth_socket_event_dispatcher.cc',
       'browser/api/bluetooth_socket/bluetooth_socket_event_dispatcher.h',
-      'browser/api/capture_web_contents_function.cc',
-      'browser/api/capture_web_contents_function.h',
+      'browser/api/capture_web_contents.cc',
+      'browser/api/capture_web_contents.h',
       'browser/api/cast_channel/cast_auth_ica.cc',
       'browser/api/cast_channel/cast_auth_ica.h',
       'browser/api/cast_channel/cast_auth_util.cc',
       'browser/api/cast_channel/cast_auth_util.h',
       'browser/api/cast_channel/cast_channel_api.cc',
       'browser/api/cast_channel/cast_channel_api.h',
       'browser/api/cast_channel/cast_framer.cc',
       'browser/api/cast_channel/cast_framer.h',
       'browser/api/cast_channel/cast_message_util.cc',
       'browser/api/cast_channel/cast_message_util.h',
@@ skipping 792 matching lines @@
       'test/result_catcher.h',
       'test/test_content_utility_client.cc',
       'test/test_content_utility_client.h',
       'test/test_extensions_client.cc',
       'test/test_extensions_client.h',
       'test/test_permission_message_provider.cc',
       'test/test_permission_message_provider.h',
     ],
   },
 }