Add PlayerTracker and BrowserCdm interfaces.

media/base/android/media_player_android.cc

 // Copyright (c) 2013 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 "media/base/android/media_player_android.h"
 
 #include "base/logging.h"
 #include "media/base/android/media_player_manager.h"
-#include "media/base/media_keys.h"
 
 namespace media {
 
 MediaPlayerAndroid::MediaPlayerAndroid(
     int player_id,
     MediaPlayerManager* manager,
     const RequestMediaResourcesCB& request_media_resources_cb,
     const ReleaseMediaResourcesCB& release_media_resources_cb)
     : request_media_resources_cb_(request_media_resources_cb),
       release_media_resources_cb_(release_media_resources_cb),
       player_id_(player_id),
       manager_(manager) {
 }
 
 MediaPlayerAndroid::~MediaPlayerAndroid() {}
 
 GURL MediaPlayerAndroid::GetUrl() {
   return GURL();
 }
 
 GURL MediaPlayerAndroid::GetFirstPartyForCookies() {
   return GURL();
 }
 
-void MediaPlayerAndroid::SetCdm(MediaKeys* cdm) {
-  // Not all players support CDMs. Do nothing by default.
+void MediaPlayerAndroid::SetCdm(BrowserCdm* /* cdm */) {
+  // Players that support EME should override this.
+  NOTREACHED() << "EME not supported on base MediaPlayerAndroid class.";
   return;
 }
 
-void MediaPlayerAndroid::OnKeyAdded() {
-  // Not all players care about the decryption key. Do nothing by default.
-  return;
-}
-
 }  // namespace media