Decryptors can report kNoKey to WebMediaPlayer

media/filters/fake_video_decoder.cc

Index: media/filters/fake_video_decoder.cc
diff --git a/media/filters/fake_video_decoder.cc b/media/filters/fake_video_decoder.cc
index 9b9663335352791cd1c4a9ae756beb79eb859c85..08bc64ce1af8dee244d3cf0dcef31e6b09126c46 100644
--- a/media/filters/fake_video_decoder.cc
+++ b/media/filters/fake_video_decoder.cc
@@ -47,10 +47,12 @@ std::string FakeVideoDecoder::GetDisplayName() const {
   return "FakeVideoDecoder";
 }
 
-void FakeVideoDecoder::Initialize(const VideoDecoderConfig& config,
-                                  bool low_delay,
-                                  const PipelineStatusCB& status_cb,
-                                  const OutputCB& output_cb) {
+void FakeVideoDecoder::Initialize(
+    const VideoDecoderConfig& config,
+    bool low_delay,
+    const PipelineStatusCB& status_cb,
+    const OutputCB& output_cb,
+    const base::Closure& /* waiting_for_encryption_key_cb */) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(config.IsValidConfig());
   DCHECK(held_decode_callbacks_.empty())