Simplify/Cleanup MediaClient

chromecast/common/media/cast_media_client.h

-// Copyright 2016 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.
-
-#ifndef CHROMECAST_COMMON_MEDIA_CAST_MEDIA_CLIENT_H_
-#define CHROMECAST_COMMON_MEDIA_CAST_MEDIA_CLIENT_H_
-
-#include "base/lazy_instance.h"
-#include "base/macros.h"
-#include "chromecast/media/base/supported_codec_profile_levels_memo.h"
-#include "media/base/media_client.h"
-
-namespace chromecast {
-namespace media {
-
-// Forwards MediaClient::IsSupportedVideoConfig calls to MediaCapabilitiesShlib
-// and the rest of the calls to the default content media client (i.e.
-// content::RenderMediaClient).
-class CastMediaClient : public ::media::MediaClient {
- public:
-  // Initialize CastMediaClient and SetMediaClient(). Note that the instance
-  // is not exposed because no content code needs to directly access it.
-  static void Initialize(SupportedCodecProfileLevelsMemo* memo);
-
-  // MediaClient implementation
-  void AddKeySystemsInfoForUMA(std::vector<::media::KeySystemInfoForUMA>*
-                                   key_systems_info_for_uma) override;
-  bool IsKeySystemsUpdateNeeded() override;
-  void AddSupportedKeySystems(
-      std::vector<std::unique_ptr<::media::KeySystemProperties>>*
-          key_systems_properties) override;
-  void RecordRapporURL(const std::string& metric, const GURL& url) override;
-  bool IsSupportedAudioConfig(const ::media::AudioConfig& config) override;
-  bool IsSupportedVideoConfig(const ::media::VideoConfig& config) override;
-
- private:
-  friend struct base::LazyInstanceTraitsBase<CastMediaClient>;
-
-  CastMediaClient(::media::MediaClient* content_media_client,
-                  SupportedCodecProfileLevelsMemo* supported_profiles);
-  ~CastMediaClient() override;
-
-  ::media::MediaClient* content_media_client_;
-  SupportedCodecProfileLevelsMemo* supported_profiles_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastMediaClient);
-};
-
-}  // namespace media
-}  // namespace chromecast
-
-#endif  // CHROMECAST_COMMON_MEDIA_CAST_MEDIA_CLIENT_H_