More trivial cleanupi of ppapi/c/trusted headers

ppapi/c/trusted/ppb_audio_trusted.h

 /* Copyright (c) 2011 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.
  */
-#ifndef PPAPI_C_PPB_AUDIO_TRUSTED_H_
-#define PPAPI_C_PPB_AUDIO_TRUSTED_H_
+
+/* From trusted/ppb_audio_trusted.idl modified Sat Jul 16 16:51:03 2011. */
+
+#ifndef PPAPI_C_TRUSTED_PPB_AUDIO_TRUSTED_H_
+#define PPAPI_C_TRUSTED_PPB_AUDIO_TRUSTED_H_
 
 #include "ppapi/c/pp_completion_callback.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"
 
-#define PPB_AUDIO_TRUSTED_INTERFACE "PPB_AudioTrusted;0.6"
+/**
+ * @file
+ * This file defines the trusted audio interface.
+ */
 
+
+/**
+ * @addtogroup Interfaces
+ * @{
+ */
 /**
  * This interface is to be used by proxy implementations.  All
  * functions should be called from the main thread only.  The
  * resource returned is an Audio resource; most of the PPB_Audio
  * interface is also usable on this resource.
  */
+#define PPB_AUDIO_TRUSTED_INTERFACE_0_6 "PPB_AudioTrusted;0.6"
+#define PPB_AUDIO_TRUSTED_INTERFACE PPB_AUDIO_TRUSTED_INTERFACE_0_6
+
 struct PPB_AudioTrusted {
   /** Returns an audio resource. */
   PP_Resource (*CreateTrusted)(PP_Instance instance);
-
   /**
    * Opens a paused audio interface, used by trusted side of proxy.
    * Returns PP_ERROR_WOULD_BLOCK on success, and invokes
    * the |create_callback| asynchronously to complete.
    * As this function should always be invoked from the main thread,
    * do not use the blocking variant of PP_CompletionCallback.
    */
-  int32_t (*Open)(PP_Resource audio, PP_Resource config,
+  int32_t (*Open)(PP_Resource audio,
+                  PP_Resource config,
                   struct PP_CompletionCallback create_callback);
-
   /**
    * Get the sync socket.  Use once Open has completed.
    * Returns PP_OK on success.
    */
   int32_t (*GetSyncSocket)(PP_Resource audio, int* sync_socket);
-
   /**
    * Get the shared memory interface.  Use once Open has completed.
    * Returns PP_OK on success.
    */
   int32_t (*GetSharedMemory)(PP_Resource audio,
                              int* shm_handle,
                              uint32_t* shm_size);
 };
+/**
+ * @}
+ */
 
-#endif  /* PPAPI_C_PPB_AUDIO_TRUSTED_H_ */
+#endif  /* PPAPI_C_TRUSTED_PPB_AUDIO_TRUSTED_H_ */
+