media: Fix WebM keyframe detection in BlockGroup

media/formats/webm/webm_cluster_parser.h

Index: media/formats/webm/webm_cluster_parser.h
diff --git a/media/formats/webm/webm_cluster_parser.h b/media/formats/webm/webm_cluster_parser.h
index 415b81ac5549c97832bfa41198acb2dc6986f06d..a050c1d7855c9cdc6309b04379298e7d025c0108 100644
--- a/media/formats/webm/webm_cluster_parser.h
+++ b/media/formats/webm/webm_cluster_parser.h
@@ -96,12 +96,6 @@ class MEDIA_EXPORT WebMClusterParser : public WebMParserClient {
     // |ready_buffers_|.
     void Reset();
 
-    // Helper function used to inspect block data to determine if the
-    // block is a keyframe.
-    // |data| contains the bytes in the block.
-    // |size| indicates the number of bytes in |data|.
-    bool IsKeyframe(const uint8_t* data, int size) const;
-
     base::TimeDelta default_duration() const { return default_duration_; }
 
    private:
@@ -222,17 +216,18 @@ class MEDIA_EXPORT WebMClusterParser : public WebMParserClient {
                   const uint8_t* additional,
                   int additional_size,
                   int duration,
-                  int64_t discard_padding);
+                  int64_t discard_padding,
+                  bool reference_block_set);
   bool OnBlock(bool is_simple_block,
                int track_num,
                int timecode,
                int duration,
-               int flags,
                const uint8_t* data,
                int size,
                const uint8_t* additional,
                int additional_size,
-               int64_t discard_padding);
+               int64_t discard_padding,
+               bool is_keyframe);
 
   // Resets the Track objects associated with each text track.
   void ResetTextTracks();
@@ -298,6 +293,8 @@ class MEDIA_EXPORT WebMClusterParser : public WebMParserClient {
   int64_t discard_padding_ = -1;
   bool discard_padding_set_ = false;
 
+  bool reference_block_set_ = false;
+
   int64_t cluster_timecode_ = -1;
   base::TimeDelta cluster_start_time_;
   bool cluster_ended_ = false;