Pepper: Fix nits mentioned in review in audio input code.

ppapi/api/trusted/ppb_audio_input_trusted_dev.idl

 /* 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.
  */
 /**
  * This file defines the trusted audio input interface.
  */
 
 label Chrome {
   M17 = 0.1
 };
 
 /**
- * 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 input esource; most of the PPB_Audio
- * interface is also usable on this resource.
+ * 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 input
+ * resource; most of the PPB_AudioInput interface is also usable on this
+ * resource.
  */
 [version=0.1, macro="PPB_AUDIO_INPUT_TRUSTED_DEV_INTERFACE"]
 interface PPB_AudioInputTrusted_Dev {
   /** Returns an audio input resource. */
   PP_Resource CreateTrusted(
       [in] 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.
+   * Opens a paused audio input 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(
       [in] PP_Resource audio_input,
       [in] PP_Resource config,
       [in] PP_CompletionCallback create_callback);
 
   /**
-   * Get the sync socket.  Use once Open has completed.
+   * Get the sync socket. Use once Open has completed.
    * Returns PP_OK on success.
    */
   int32_t GetSyncSocket(
       [in] PP_Resource audio_input,
       [out] handle_t sync_socket);
 
   /**
-   * Get the shared memory interface.  Use once Open has completed.
+   * Get the shared memory interface. Use once Open has completed.
    * Returns PP_OK on success.
    */
   int32_t GetSharedMemory(
       [in] PP_Resource audio_input,
       [out] handle_t shm_handle,
       [out] uint32_t shm_size);
 };