Adds MediaClientAndroid to support embedder/MediaDrmBridge interaction.

chrome/browser/android/chrome_media_client_android.h

+// 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 CHROME_BROWSER_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_
+#define CHROME_BROWSER_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_
+
+#include "base/macros.h"
+#include "components/cdm/browser/widevine_drm_delegate_android.h"
+#include "media/base/android/media_client_android.h"
+
+class ChromeMediaClientAndroid : public media::MediaClientAndroid {
+ public:
+  ChromeMediaClientAndroid();
+  ~ChromeMediaClientAndroid() override;
+
+ private:
+  // media::MediaClientAndroid implementation:
+  media::MediaDrmBridgeDelegate* GetMediaDrmBridgeDelegate(
+      const std::vector<uint8_t>& scheme_uuid) override;
+
+  cdm::WidevineDrmDelegateAndroid widevine_delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeMediaClientAndroid);
+};
+
+#endif  // CHROME_BROWSER_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_