Delete browser MSE implementation.

content/renderer/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//third_party/webrtc/build/webrtc.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
@@ skipping 180 matching lines @@
     "manifest/manifest_parser.cc",
     "manifest/manifest_parser.h",
     "manifest/manifest_uma_util.cc",
     "manifest/manifest_uma_util.h",
     "media/android/media_info_loader.cc",
     "media/android/media_info_loader.h",
     "media/android/media_player_renderer_client.cc",
     "media/android/media_player_renderer_client.h",
     "media/android/media_player_renderer_client_factory.cc",
     "media/android/media_player_renderer_client_factory.h",
-    "media/android/media_source_delegate.cc",
-    "media/android/media_source_delegate.h",
-    "media/android/renderer_demuxer_android.cc",
-    "media/android/renderer_demuxer_android.h",
     "media/android/renderer_media_player_manager.cc",
     "media/android/renderer_media_player_manager.h",
     "media/android/renderer_media_session_manager.cc",
     "media/android/renderer_media_session_manager.h",
     "media/android/renderer_surface_view_manager.cc",
     "media/android/renderer_surface_view_manager.h",
     "media/android/stream_texture_factory.cc",
     "media/android/stream_texture_factory.h",
     "media/android/stream_texture_wrapper_impl.cc",
     "media/android/stream_texture_wrapper_impl.h",
@@ skipping 700 matching lines @@
     # For the defines in mojo_media_config.
     public_configs = [ "//media/mojo/services:mojo_media_config" ]
   }
 
   if (!is_component_build) {
     public_deps = [
       ":renderer",
     ]
   }
 }