Minor changes as per Christians most-recent review of the docs.

ppapi/c/ppb_file_system.h

Index: ppapi/c/ppb_file_system.h
===================================================================
--- ppapi/c/ppb_file_system.h	(revision 118900)
+++ ppapi/c/ppb_file_system.h	(working copy)
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_file_system.idl modified Wed Oct  5 14:06:02 2011. */
+/* From ppb_file_system.idl modified Tue Jan 24 16:16:19 2012. */
 
 #ifndef PPAPI_C_PPB_FILE_SYSTEM_H_
 #define PPAPI_C_PPB_FILE_SYSTEM_H_
@@ -67,10 +67,9 @@
    * completion of Open().
    *
    * @return An int32_t containing an error code from <code>pp_errors.h</code>.
-   *
-   * TODO(brettw) clarify whether this must have completed before a file can
-   * be opened in it. Clarify what it means to be "completed."
    */
+  /* TODO(brettw) clarify whether this must have completed before a file can */
+  /* be opened in it. Clarify what it means to be "completed." */
   int32_t (*Open)(PP_Resource file_system,
                   int64_t expected_size,
                   struct PP_CompletionCallback callback);