Minor changes to ARAB and ARAD necessary for OLA

media/filters/audio_renderer_algorithm_default.h

Index: media/filters/audio_renderer_algorithm_default.h
===================================================================
--- media/filters/audio_renderer_algorithm_default.h	(revision 19669)
+++ media/filters/audio_renderer_algorithm_default.h	(working copy)
@@ -10,12 +10,12 @@
 #ifndef MEDIA_FILTERS_AUDIO_RENDERER_ALGORITHM_DEFAULT_H_
 #define MEDIA_FILTERS_AUDIO_RENDERER_ALGORITHM_DEFAULT_H_
 
-#include "base/time.h"
-#include "media/base/data_buffer.h"
 #include "media/filters/audio_renderer_algorithm_base.h"
 
 namespace media {
 
+class DataBuffer;
+
 class AudioRendererAlgorithmDefault : public AudioRendererAlgorithmBase {
  public:
   AudioRendererAlgorithmDefault();