Chromecast: move link-time decisions to inheritance-based Content*Client.

chromecast/browser/cast_content_browser_client_simple.cc

 // 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.
 
 #include "chromecast/browser/cast_content_browser_client.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chromecast/media/cma/backend/media_pipeline_device.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "media/audio/audio_manager_factory.h"
 
 namespace chromecast {
 namespace shell {
 
 // static
 scoped_ptr<CastContentBrowserClient> CastContentBrowserClient::Create() {
   return make_scoped_ptr(new CastContentBrowserClient());
 }
 
-void CastContentBrowserClient::PlatformAppendExtraCommandLineSwitches(
-    base::CommandLine* command_line) {
-}
-
-std::vector<scoped_refptr<content::BrowserMessageFilter>>
-CastContentBrowserClient::PlatformGetBrowserMessageFilters() {
-  return std::vector<scoped_refptr<content::BrowserMessageFilter>>();
-}
-
-scoped_ptr<::media::AudioManagerFactory>
-CastContentBrowserClient::PlatformCreateAudioManagerFactory() {
-  // Return nullptr. The factory will not be set, and the statically linked
-  // implementation of AudioManager will be used.
-  return scoped_ptr<::media::AudioManagerFactory>();
-}
-
-#if !defined(OS_ANDROID)
-scoped_ptr<media::MediaPipelineDevice>
-CastContentBrowserClient::PlatformCreateMediaPipelineDevice(
-    const media::MediaPipelineDeviceParams& params) {
-  return media::CreateMediaPipelineDevice(params);
-}
-#endif
-
 }  // namespace shell
 }  // namespace chromecast