Add a new parameter |latency| to PPB_Audio.

ppapi/c/ppb_audio.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.
  */
 
-/* From ppb_audio.idl modified Mon Jul  9 12:03:36 2012. */
+/* From ppb_audio.idl modified Thu Aug 01 13:19:46 2013. */
 
 #ifndef PPAPI_C_PPB_AUDIO_H_
 #define PPAPI_C_PPB_AUDIO_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/pp_time.h"
 
 #define PPB_AUDIO_INTERFACE_1_0 "PPB_Audio;1.0"
-#define PPB_AUDIO_INTERFACE PPB_AUDIO_INTERFACE_1_0
+#define PPB_AUDIO_INTERFACE_1_1 "PPB_Audio;1.1"
+#define PPB_AUDIO_INTERFACE PPB_AUDIO_INTERFACE_1_1
 
 /**
  * @file
  * This file defines the <code>PPB_Audio</code> interface, which provides
  * realtime stereo audio streaming capabilities.
  */
 
 
 /**
  * @addtogroup Typedefs
  * @{
  */
 /**
  * <code>PPB_Audio_Callback</code> defines the type of an audio callback
  * function used to fill the audio buffer with data. Please see the
  * Create() function in the <code>PPB_Audio</code> interface for
  * more details on this callback.
+ *
+ * @param[in] sample_buffer A buffer to fill with audio data.
+ * @param[in] buffer_size_in_bytes The size of the buffer in bytes.
+ * @param[in] latency How long before the audio data is to be presented.
+ * @param[inout] user_data An opaque pointer that was passed into
+ * <code>PPB_Audio.Create()</code>.
  */
 typedef void (*PPB_Audio_Callback)(void* sample_buffer,
                                    uint32_t buffer_size_in_bytes,
+                                   PP_TimeDelta latency,
                                    void* user_data);
+
+typedef void (*PPB_Audio_Callback_1_0)(void* sample_buffer,
+                                       uint32_t buffer_size_in_bytes,
+                                       void* user_data);
 /**
  * @}
  */
 
 /**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * The <code>PPB_Audio</code> interface contains pointers to several functions
@@ skipping 21 matching lines @@
  *     PP_AUDIOSAMPLERATE_44100, 4096);
  * PP_Resource pp_audio_config = audio_config_interface->CreateStereo16Bit(
  *     pp_instance, PP_AUDIOSAMPLERATE_44100, count);
  * PP_Resource pp_audio = audio_interface->Create(pp_instance, pp_audio_config,
  *     audio_callback, NULL);
  * audio_interface->StartPlayback(pp_audio);
  *
  * ...audio_callback() will now be periodically invoked on a separate thread...
  * @endcode
  */
-struct PPB_Audio_1_0 {
+struct PPB_Audio_1_1 {
   /**
    * Create() creates an audio resource. No sound will be heard until
    * StartPlayback() is called. The callback is called with the buffer address
    * and given user data whenever the buffer needs to be filled. From within the
    * callback, you should not call <code>PPB_Audio</code> functions. The
    * callback will be called on a different thread than the one which created
    * the interface. For performance-critical applications (i.e. low-latency
    * audio), the callback should avoid blocking or calling functions that can
    * obtain locks, such as malloc. The layout and the size of the buffer passed
    * to the audio callback will be determined by the device configuration and is
@@ skipping 58 matching lines @@
    *
    * @return A <code>PP_Bool</code> containing <code>PP_TRUE</code> if
    * successful, otherwise <code>PP_FALSE</code>. Also returns
    * <code>PP_TRUE</code> (and is a no-op) if called while playback is already
    * stopped. If a callback is in progress, StopPlayback() will block until the
    * callback completes.
    */
   PP_Bool (*StopPlayback)(PP_Resource audio);
 };
 
-typedef struct PPB_Audio_1_0 PPB_Audio;
+typedef struct PPB_Audio_1_1 PPB_Audio;
+
+struct PPB_Audio_1_0 {
+  PP_Resource (*Create)(PP_Instance instance,
+                        PP_Resource config,
+                        PPB_Audio_Callback_1_0 audio_callback,
+                        void* user_data);
+  PP_Bool (*IsAudio)(PP_Resource resource);
+  PP_Resource (*GetCurrentConfig)(PP_Resource audio);
+  PP_Bool (*StartPlayback)(PP_Resource audio);
+  PP_Bool (*StopPlayback)(PP_Resource audio);
+};
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PPB_AUDIO_H_ */