Add the SetMediaKeys handler to pass a drm bridge to a MediaSourcePlayer

media/base/android/media_source_player.cc

Index: media/base/android/media_source_player.cc
diff --git a/media/base/android/media_source_player.cc b/media/base/android/media_source_player.cc
index 9495ed082f251839e1d2f6dcc563d8cbd3b442c5..f493ba1638ecb75d708d0aab323b016a1d493e4a 100644
--- a/media/base/android/media_source_player.cc
+++ b/media/base/android/media_source_player.cc
@@ -286,7 +286,8 @@ MediaSourcePlayer::MediaSourcePlayer(
       video_access_unit_index_(0),
       waiting_for_audio_data_(false),
       waiting_for_video_data_(false),
-      weak_this_(this) {
+      weak_this_(this),
+      drm_bridge_(NULL) {
 }
 
 MediaSourcePlayer::~MediaSourcePlayer() {
@@ -471,6 +472,13 @@ void MediaSourcePlayer::DurationChanged(const base::TimeDelta& duration) {
   duration_ = duration;
 }
 
+void MediaSourcePlayer::SetDrmBridge(MediaDrmBridge* drm_bridge) {
+  drm_bridge_ = drm_bridge;
+  // TODO(qinmin): similar to SetVideoSurface() call, we need to wait for the
+  // current decoder jobs to finish, and then use the ProcessPendingEvents()
+  // to pass the drm_bridge to the decoder jobs.

[xhwang, 2013/06/21 20:45:11]

I am not sure if we could/should do here. So this TODO seems a bit premature to
me.

[qinmin, 2013/06/21 20:53:17]

This is just to handle a DRM change in the middle of decoding. We can just set a
flag here, something like PENDING_DRM_CHANGE.
And then when both decoders finish decoding the current frame, we pass the drm
object to it so it can recreate the codecs.

If we don't allow DRM change during decoding, then this call will just do the
assignment above statement. But we still have to deal with the situation that
DRM object is teared down before the player.

On 2013/06/21 20:45:11, xhwang wrote:

+}
+
 void MediaSourcePlayer::OnSeekRequestAck(unsigned seek_request_id) {
   // Do nothing until the most recent seek request is processed.
   if (seek_request_id_ != seek_request_id)