Decryptors can report kNoKey to WebMediaPlayer

media/filters/audio_renderer_impl.cc

Index: media/filters/audio_renderer_impl.cc
diff --git a/media/filters/audio_renderer_impl.cc b/media/filters/audio_renderer_impl.cc
index 043037030ff4b8af0d86963f3fdcd156d4a0c0eb..38dd1bdd1f157cbcc3a3743068e74956e525320b 100644
--- a/media/filters/audio_renderer_impl.cc
+++ b/media/filters/audio_renderer_impl.cc
@@ -257,7 +257,8 @@ void AudioRendererImpl::Initialize(
     const StatisticsCB& statistics_cb,
     const BufferingStateCB& buffering_state_cb,
     const base::Closure& ended_cb,
-    const PipelineStatusCB& error_cb) {
+    const PipelineStatusCB& error_cb,
+    const base::Closure& waiting_for_encryption_key_cb) {
   DVLOG(1) << __FUNCTION__;
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(stream);
@@ -317,7 +318,7 @@ void AudioRendererImpl::Initialize(
   audio_buffer_stream_->Initialize(
       stream, base::Bind(&AudioRendererImpl::OnAudioBufferStreamInitialized,
                          weak_factory_.GetWeakPtr()),
-      set_decryptor_ready_cb, statistics_cb);
+      set_decryptor_ready_cb, statistics_cb, waiting_for_encryption_key_cb);
 }
 
 void AudioRendererImpl::OnAudioBufferStreamInitialized(bool success) {