Work on improving PpbAudioConfig:RecommendSampleFrameCount

ppapi/shared_impl/ppb_audio_config_shared.h

Index: ppapi/shared_impl/ppb_audio_config_shared.h
===================================================================
--- ppapi/shared_impl/ppb_audio_config_shared.h	(revision 118765)
+++ ppapi/shared_impl/ppb_audio_config_shared.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -25,6 +25,12 @@
                                    PP_AudioSampleRate sample_rate,
                                    uint32_t sample_frame_count);
 
+  static PP_AudioSampleRate RecommendSampleRate(PP_Instance instance);
+  static uint32_t
+      RecommendSampleFrameCount(PP_Instance instance,
+                                PP_AudioSampleRate sample_rate,
+                                uint32_t request_sample_frame_count);
+
   // Resource overrides.
   virtual thunk::PPB_AudioConfig_API* AsPPB_AudioConfig_API() OVERRIDE;
 
@@ -41,7 +47,8 @@
 
   // Returns false if the arguments are invalid, the object should not be
   // used in this case.
-  bool Init(PP_AudioSampleRate sample_rate, uint32_t sample_frame_count);
+  bool Init(PP_AudioSampleRate sample_rate,
+            uint32_t sample_frame_count);
 
   PP_AudioSampleRate sample_rate_;
   uint32_t sample_frame_count_;