Adds MediaClientAndroid to support embedder/MediaDrmBridge interaction.

chromecast/browser/media/cast_media_client_android.h

Index: chromecast/browser/media/cast_media_client_android.h
diff --git a/chromecast/browser/media/cast_media_client_android.h b/chromecast/browser/media/cast_media_client_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..932a7390a03c6dcf8d7886224c5cb88a5383b2f3
--- /dev/null
+++ b/chromecast/browser/media/cast_media_client_android.h
@@ -0,0 +1,40 @@
+// 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.
+
+#ifndef CHROMECAST_BROWSER_MEDIA_CAST_MEDIA_CLIENT_ANDROID_H_
+#define CHROMECAST_BROWSER_MEDIA_CAST_MEDIA_CLIENT_ANDROID_H_
+
+#include <map>
+
+#include "base/macros.h"
+#include "media/base/android/media_client_android.h"
+
+namespace chromecast {
+namespace media {
+
+class CastMediaClientAndroid : public ::media::MediaClientAndroid {
+ public:
+  CastMediaClientAndroid();
+  ~CastMediaClientAndroid() override;
+
+ private:
+  typedef std::map<std::vector<uint8_t>, ::media::MediaDrmBridgeDelegate*>
+      DelegateMap;
+
+  // ::media::MediaClientAndroid implementation:
+  std::vector<std::pair<std::string, std::vector<uint8_t>>>
+      GetKeySystemUUIDMappings() const override;
+  ::media::MediaDrmBridgeDelegate* GetMediaDrmBridgeDelegate(
+      const std::vector<uint8_t>& scheme_uuid) const override;
+
+  std::vector<std::pair<std::string, std::vector<uint8_t>>> mappings_;
+  DelegateMap delegates_;
+
+  DISALLOW_COPY_AND_ASSIGN(CastMediaClientAndroid);
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_BROWSER_MEDIA_CAST_MEDIA_CLIENT_ANDROID_H_