Refactor: Make MediaCaptureDevicesDispatcher have pluggable handlers.

chrome/chrome_browser.gypi

 # Copyright 2012 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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 490 matching lines @@
       'browser/media/android/remote/record_cast_action.cc',
       'browser/media/android/remote/record_cast_action.h',
       'browser/media/android/remote/remote_media_player_bridge.cc',
       'browser/media/android/remote/remote_media_player_bridge.h',
       'browser/media/android/remote/remote_media_player_manager.cc',
       'browser/media/android/remote/remote_media_player_manager.h',
       'browser/media/desktop_media_list.h',
       'browser/media/desktop_media_picker.h',
       'browser/media/desktop_streams_registry.cc',
       'browser/media/desktop_streams_registry.h',
+      'browser/media/desktop_capture_access_handler.cc',
+      'browser/media/desktop_capture_access_handler.h',
+      'browser/media/media_access_handler.cc',
+      'browser/media/media_access_handler.h',
       'browser/media/media_capture_devices_dispatcher.cc',
       'browser/media/media_capture_devices_dispatcher.h',
       'browser/media/media_device_id_salt.cc',
       'browser/media/media_device_id_salt.h',
       'browser/media/media_stream_capture_indicator.cc',
       'browser/media/media_stream_capture_indicator.h',
       'browser/media/media_stream_device_permissions.cc',
       'browser/media/media_stream_device_permissions.h',
       'browser/media/media_stream_devices_controller.cc',
       'browser/media/media_stream_devices_controller.h',
       'browser/media/media_stream_infobar_delegate.cc',
       'browser/media/media_stream_infobar_delegate.h',
       'browser/media/midi_permission_context.cc',
       'browser/media/midi_permission_context.h',
       'browser/media/midi_permission_context_factory.cc',
       'browser/media/midi_permission_context_factory.h',
       'browser/media/midi_permission_infobar_delegate.cc',
       'browser/media/midi_permission_infobar_delegate.h',
       'browser/media/native_desktop_media_list.cc',
       'browser/media/native_desktop_media_list.h',
+      'browser/media/regular_media_access_handler.cc',
+      'browser/media/regular_media_access_handler.h',
+      'browser/media/tab_capture_access_handler.cc',
+      'browser/media/tab_capture_access_handler.h',
       # TODO(brettw) should this go with the webrtc sources?
       'browser/media/webrtc_log_list.cc',
       'browser/media/webrtc_log_list.h',
       'browser/memory_details.cc',
       'browser/memory_details.h',
       'browser/memory_details_android.cc',
       'browser/memory_details_linux.cc',
       'browser/memory_details_mac.cc',
       'browser/memory_details_win.cc',
       'browser/mod_pagespeed/mod_pagespeed_metrics.cc',
@@ skipping 2626 matching lines @@
             # These files are generated by GRIT.
             '<(SHARED_INTERMEDIATE_DIR)/ui/resources/grit/ui_resources_map.cc',
             '<(grit_out_dir)/grit/component_extension_resources_map.cc',
             '<(grit_out_dir)/grit/settings_resources_map.cc',
             '<(grit_out_dir)/grit/theme_resources_map.cc',
 
             # This file is generated by
             # chrome/browser/metrics/variations/generate_resources_map.py
             '<(SHARED_INTERMEDIATE_DIR)/chrome/browser/metrics/variations/generated_resources_map.cc',
           ],
+          'conditions' : [
+            ['enable_extensions==1', {
+              'sources': [
+                'browser/media/extension_media_access_handler.cc',

[Lei Zhang, 2015/04/24 18:39:17]

Just put these in the 'chrome_browser_extensions_sources' section.

[changbin, 2015/04/29 05:24:35]

Thanks, done.

+                'browser/media/extension_media_access_handler.h',
+              ],
+            }],
+          ],
         }, {  # OS == "ios"
           'dependencies': [
             '../net/net.gyp:net',
           ],
           # A few sources had been brought up for iOS before the decision not to
           # use chrome/ for iOS long-term. Keep building them to prevent iOS
           # regressions until they have been componentized.
           'sources': [
             '<@(chrome_browser_ios_sources)',
             '<@(chrome_browser_google_sources)',
@@ skipping 655 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }