Revert 258215 "Remove muting for extreme playbackRates."

trunk/src/media/filters/audio_renderer_algorithm.h

Index: trunk/src/media/filters/audio_renderer_algorithm.h
===================================================================
--- trunk/src/media/filters/audio_renderer_algorithm.h	(revision 274695)
+++ trunk/src/media/filters/audio_renderer_algorithm.h	(working copy)
@@ -19,6 +19,8 @@
 // are preserved. See audio_renderer_algorith.cc for a more elaborate
 // description of the algorithm.
 //
+// Audio at very low or very high playback rates are muted to preserve quality.
+//
 
 #ifndef MEDIA_FILTERS_AUDIO_RENDERER_ALGORITHM_H_
 #define MEDIA_FILTERS_AUDIO_RENDERER_ALGORITHM_H_
@@ -82,6 +84,9 @@
   // Returns the samples per second for this audio stream.
   int samples_per_second() { return samples_per_second_; }
 
+  // Is the sound currently muted?
+  bool is_muted() { return muted_; }
+
  private:
   // Within |search_block_|, find the block of data that is most similar to
   // |target_block_|, and write it in |optimal_block_|. This method assumes that
@@ -135,6 +140,12 @@
   // Buffered audio data.
   AudioBufferQueue audio_buffer_;
 
+  // True if the audio should be muted.
+  bool muted_;
+
+  // If muted, keep track of partial frames that should have been skipped over.
+  double muted_partial_frame_;
+
   // How many frames to have in the queue before we report the queue is full.
   int capacity_;