Add Promises for EME (Chromium side)

media/base/android/media_source_player.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_source_player.h"
 
 #include <limits>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 337 matching lines @@
 }
 
 void MediaSourcePlayer::OnMediaCryptoReady() {
   DCHECK(!drm_bridge_->GetMediaCrypto().is_null());
   drm_bridge_->SetMediaCryptoReadyCB(base::Closure());
 
   if (playing_)
     StartInternal();
 }
 
-void MediaSourcePlayer::SetCdm(MediaKeys* cdm) {
+void MediaSourcePlayer::SetCdm(MediaDrmBridge* cdm) {
   // Currently we don't support DRM change during the middle of playback, even
   // if the player is paused.
   // TODO(qinmin): support DRM change after playback has started.
   // http://crbug.com/253792.
   if (GetCurrentTime() > base::TimeDelta()) {
     VLOG(0) << "Setting DRM bridge after playback has started. "
             << "This is not well supported!";
   }
 
   // Only MediaDrmBridge will be set on MediaSourcePlayer.
-  drm_bridge_ = static_cast<MediaDrmBridge*>(cdm);
+  drm_bridge_ = cdm;
 
   if (drm_bridge_->GetMediaCrypto().is_null()) {
     drm_bridge_->SetMediaCryptoReadyCB(base::Bind(
         &MediaSourcePlayer::OnMediaCryptoReady, weak_factory_.GetWeakPtr()));
     return;
   }
 
   if (playing_)
     StartInternal();
 }
@@ skipping 636 matching lines @@
     audio_extra_data_ = configs.audio_extra_data;
   } else {
     video_codec_ = configs.video_codec;
     width_ = configs.video_size.width();
     height_ = configs.video_size.height();
     is_video_encrypted_ = configs.is_video_encrypted;
   }
 }
 
 }  // namespace media