Update a ton of audio code to use size_t more correctly and in general reduce

talk/media/base/audiorenderer.h

 /*
  * libjingle
  * Copyright 2013 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 10 matching lines @@
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TALK_MEDIA_BASE_AUDIORENDERER_H_
 #define TALK_MEDIA_BASE_AUDIORENDERER_H_
 
+#include <cstddef>
+
 namespace cricket {
 
 // Abstract interface for rendering the audio data.
 class AudioRenderer {
  public:
   class Sink {
    public:
     // Callback to receive data from the AudioRenderer.
     virtual void OnData(const void* audio_data,
                         int bits_per_sample,
                         int sample_rate,
                         int number_of_channels,
-                        int number_of_frames) = 0;
+                        size_t number_of_frames) = 0;
 
     // Called when the AudioRenderer is going away.
     virtual void OnClose() = 0;
 
    protected:
     virtual ~Sink() {}
   };
 
   // Sets a sink to the AudioRenderer. There can be only one sink connected
   // to the renderer at a time.
@@ skipping 13 matching lines @@
   // AudioRenderer::Sink interface.
   virtual void RemoveChannel(int channel_id) {}
 
  protected:
   virtual ~AudioRenderer() {}
 };
 
 }  // namespace cricket
 
 #endif  // TALK_MEDIA_BASE_AUDIORENDERER_H_