Decryptors can report kNoKey to WebMediaPlayer

media/base/audio_decoder.h

Index: media/base/audio_decoder.h
diff --git a/media/base/audio_decoder.h b/media/base/audio_decoder.h
index 44e79a4d5b31c0fd976484c2281cce60e1eeca17..90b7ac466aa37f25ef527dd7c077aed132fc0a19 100644
--- a/media/base/audio_decoder.h
+++ b/media/base/audio_decoder.h
@@ -56,9 +56,13 @@ class MEDIA_EXPORT AudioDecoder {
   // callback upon completion.
   //  |statistics_cb| is used to update global pipeline statistics.
   //  |output_cb| is called for decoded audio buffers (see Decode()).
-  virtual void Initialize(const AudioDecoderConfig& config,
-                          const PipelineStatusCB& status_cb,
-                          const OutputCB& output_cb) = 0;
+  //  |waiting_for_encryption_key_cb| is called whenever a new key needs to be

[ddorwin, 2015/02/19 05:33:17]

...whenever the key needed to decrypt the stream is not available.

[jrummell, 2015/02/23 22:06:31]

Done.

+  //                                  provided in order to decrypt the stream.
+  virtual void Initialize(
+      const AudioDecoderConfig& config,
+      const PipelineStatusCB& status_cb,
+      const OutputCB& output_cb,
+      const base::Closure& waiting_for_encryption_key_cb) = 0;

[ddorwin, 2015/02/19 05:33:17]

s/encryption/decryption/

[jrummell, 2015/02/23 22:06:31]

Done.

 
   // Requests samples to be decoded. Only one decode may be in flight at any
   // given time. Once the buffer is decoded the decoder calls |decode_cb|.