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

ppapi/api/trusted/ppb_audio_input_trusted_dev.idl

Index: ppapi/api/trusted/ppb_audio_input_trusted_dev.idl
diff --git a/ppapi/api/trusted/ppb_audio_input_trusted_dev.idl b/ppapi/api/trusted/ppb_audio_input_trusted_dev.idl
index 860c2e374b6b597f53337f39d06cfb107dc38a12..b845ac15b9f08c6303f3c59df4a6872fee991a1b 100644
--- a/ppapi/api/trusted/ppb_audio_input_trusted_dev.idl
+++ b/ppapi/api/trusted/ppb_audio_input_trusted_dev.idl
@@ -11,10 +11,10 @@ label Chrome {
 };
 
 /**
- * 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 {
@@ -23,11 +23,10 @@ interface PPB_AudioInputTrusted_Dev {
       [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,
@@ -35,7 +34,7 @@ interface PPB_AudioInputTrusted_Dev {
       [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(
@@ -43,7 +42,7 @@ interface PPB_AudioInputTrusted_Dev {
       [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(