Add kSeekToStartFudgeRoom to SourceBufferStream

media/filters/source_buffer_stream.h

Index: media/filters/source_buffer_stream.h
diff --git a/media/filters/source_buffer_stream.h b/media/filters/source_buffer_stream.h
index 1dba5bda8ec6dda438e910ea3ccca3ede6d07c36..1c72c238f2b30d1acd4fe147c91f63225ed5d9db 100644
--- a/media/filters/source_buffer_stream.h
+++ b/media/filters/source_buffer_stream.h
@@ -174,9 +174,9 @@ class MEDIA_EXPORT SourceBufferStream {
   // for the previous |selected_range_|.
   void SetSelectedRange(SourceBufferRange* range);
 
-  // Returns true if |timestamp| occurs before the start timestamp of the first
-  // range in |ranges_|, false otherwise or if |ranges_| is empty.
-  bool IsBeforeFirstRange(base::TimeDelta timestamp) const;
+  // Returns true if |seek_timestamp| refers to the beginning of the first range
+  // in |ranges_|, false otherwise or if |ranges_| is empty.
+  bool ShouldSeekToStartOfBuffered(base::TimeDelta seek_timestamp) const;
 
   // Returns true if the timestamps of |buffers| are monotonically increasing
   // since the previous append to the media segment, false otherwise.