Simplify/Cleanup MediaClient

chromecast/renderer/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_RENDERER_MEDIA_CAST_MEDIA_CLIENT_H_
+#define CHROMECAST_RENDERER_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 "content/public/renderer/content_media_client.h"
+
+namespace chromecast {
+namespace media {
+
+// Overrides ContentMediaClient::IsSupportedVideoConfig to call
+// MediaCapabilitiesShlib. Otherwise defers to content::ContentMediaClient.
+class CastMediaClient : public ::content::ContentMediaClient {
+ public:
+  CastMediaClient(content::ContentRendererClient* content_renderer_client,
+                  SupportedCodecProfileLevelsMemo* supported_profiles);
+  ~CastMediaClient() override;
+
+  // ContentMediaClient overrides.
+  bool IsSupportedVideoConfig(const ::media::VideoConfig& config) override;
+
+ private:
+  friend struct base::LazyInstanceTraitsBase<CastMediaClient>;
+
+  SupportedCodecProfileLevelsMemo* supported_profiles_;
+
+  DISALLOW_COPY_AND_ASSIGN(CastMediaClient);
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_RENDERER_MEDIA_CAST_MEDIA_CLIENT_H_