Decryptors can report kNoKey to WebMediaPlayer

media/filters/ffmpeg_video_decoder.cc

Index: media/filters/ffmpeg_video_decoder.cc
diff --git a/media/filters/ffmpeg_video_decoder.cc b/media/filters/ffmpeg_video_decoder.cc
index a269afbfdf335a17e512e8a51c978cf57c38bb64..6932ab03da506126f4e802f29f0345944126122c 100644
--- a/media/filters/ffmpeg_video_decoder.cc
+++ b/media/filters/ffmpeg_video_decoder.cc
@@ -159,10 +159,12 @@ std::string FFmpegVideoDecoder::GetDisplayName() const {
   return "FFmpegVideoDecoder";
 }
 
-void FFmpegVideoDecoder::Initialize(const VideoDecoderConfig& config,
-                                    bool low_delay,
-                                    const PipelineStatusCB& status_cb,
-                                    const OutputCB& output_cb) {
+void FFmpegVideoDecoder::Initialize(
+    const VideoDecoderConfig& config,
+    bool low_delay,
+    const PipelineStatusCB& status_cb,
+    const OutputCB& output_cb,
+    const base::Closure& /* waiting_for_encryption_key_cb */) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(!config.is_encrypted());
   DCHECK(!output_cb.is_null());