Fix seeking back in the new MSE GC algorithm

media/filters/source_buffer_stream.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // SourceBufferStream is a data structure that stores media Buffers in ranges.
 // Buffers can be appended out of presentation order. Buffers are retrieved by
 // seeking to the desired start point and calling GetNextBuffer(). Buffers are
 // returned in sequential presentation order.
 
 #ifndef MEDIA_FILTERS_SOURCE_BUFFER_STREAM_H_
@@ skipping 427 matching lines @@
   // Indicates that all buffers before |pending_buffer_| have been handed out.
   bool pending_buffers_complete_ = false;
 
   // Indicates that splice frame generation is enabled.
   const bool splice_frames_enabled_;
 
   // To prevent log spam, count the number of warnings and successes logged.
   int num_splice_generation_warning_logs_ = 0;
   int num_splice_generation_success_logs_ = 0;
   int num_track_buffer_gap_warning_logs_ = 0;
+  int num_garbage_collect_algorithm_logs_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(SourceBufferStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_SOURCE_BUFFER_STREAM_H_