Decryptors can report kNoKey to WebMediaPlayer

media/base/video_decoder.h

Index: media/base/video_decoder.h
diff --git a/media/base/video_decoder.h b/media/base/video_decoder.h
index c49e0dcdbd28b7e4a56b6def8c0eb0edd0cb529e..a3ed222e87a4b25e3101b5cca1cc9daf9f8e0d78 100644
--- a/media/base/video_decoder.h
+++ b/media/base/video_decoder.h
@@ -53,7 +53,9 @@ class MEDIA_EXPORT VideoDecoder {
 
   // Initializes a VideoDecoder with the given |config|, executing the
   // |status_cb| upon completion. |output_cb| is called for each output frame
-  // decoded by Decode().
+  // decoded by Decode(). |waiting_for_encryption_key_cb| is called for

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

dittos

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

Done.

+  // encrypted streams whenever a new key is required in order to decrypt
+  // the stream.
   //
   // If |low_delay| is true then the decoder is not allowed to queue frames,
   // except for out-of-order frames, i.e. if the next frame can be returned it
@@ -66,10 +68,12 @@ class MEDIA_EXPORT VideoDecoder {
   //    Upon reinitialization, all internal buffered frames will be dropped.
   // 2) This method should not be called during pending decode or reset.
   // 3) No VideoDecoder calls should be made before |status_cb| is executed.
-  virtual void Initialize(const VideoDecoderConfig& config,
-                          bool low_delay,
-                          const PipelineStatusCB& status_cb,
-                          const OutputCB& output_cb) = 0;
+  virtual void Initialize(
+      const VideoDecoderConfig& config,
+      bool low_delay,
+      const PipelineStatusCB& status_cb,
+      const OutputCB& output_cb,
+      const base::Closure& waiting_for_encryption_key_cb) = 0;
 
   // Requests a |buffer| to be decoded. The status of the decoder and decoded
   // frame are returned via the provided callback. Some decoders may allow