Decryptors can report kNoKey to WebMediaPlayer

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index 12839eb06eeceecbc38ef54299c90695a5cd0ae6..be327aa3eed40aa4f6104be016da691538dbd8f6 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -678,6 +678,10 @@ void WebMediaPlayerImpl::OnEncryptedMediaInitData(
                      base::saturated_cast<unsigned int>(init_data.size()));
 }
 
+void WebMediaPlayerImpl::OnWaitingForDecryptionKey() {
+  // client_->waitingForKey();

[jrummell, 2015/02/23 22:06:32]

Forgot to update this. There are 2 options.

1) Call didBlockPlaybackWaitingForKey() immediately followed by 
didResumePlaybackBlockedForKey(). This will generate the event for every
audio/video stream that needs a key.

2) Rather than use base::Closure as the type, create one that passes an enum
(NeedKey, GotKey). Based on the enum call the appropriate method on client_
(plus add the necessary call with GotKey inside DVD/DAD). This would likely mean
that the event is only generated once. 

Thoughts?

[ddorwin, 2015/02/23 23:47:47]

Let's start with the simple solution then re-evaluate the best way to implement
this.

[jrummell, 2015/02/24 01:19:39]

Done.

+}
+
 void WebMediaPlayerImpl::SetCdm(CdmContext* cdm_context,
                                 const CdmAttachedCB& cdm_attached_cb) {
   pipeline_.SetCdm(cdm_context, cdm_attached_cb);
@@ -889,7 +893,8 @@ void WebMediaPlayerImpl::StartPipeline() {
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnPipelineBufferingStateChanged),
       base::Bind(&WebMediaPlayerImpl::FrameReady, base::Unretained(this)),
       BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnDurationChanged),
-      BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnAddTextTrack));
+      BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnAddTextTrack),
+      BIND_TO_RENDER_LOOP(&WebMediaPlayerImpl::OnWaitingForDecryptionKey));
 }
 
 void WebMediaPlayerImpl::SetNetworkState(WebMediaPlayer::NetworkState state) {