[PPAPI] Fix a bunch of spelling mistakes

ppapi/c/pp_errors.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 pp_errors.idl modified Thu Dec 20 14:28:44 2012. */
+/* From pp_errors.idl modified Thu Mar 28 10:12:22 2013. */
 
 #ifndef PPAPI_C_PP_ERRORS_H_
 #define PPAPI_C_PP_ERRORS_H_
 
 #include "ppapi/c/pp_macros.h"
 
 /**
  * @file
  * This file defines an enumeration of all PPAPI error codes.
  */
@@ skipping 66 matching lines @@
   /**
    * Returned if you try to use a null completion callback to "block until
    * complete" on the main thread. Blocking the main thread is not permitted
    * to keep the browser responsive (otherwise, you may not be able to handle
    * input events, and there are reentrancy and deadlock issues).
    *
    * The goal is to provide blocking calls from background threads, but PPAPI
    * calls on background threads are not currently supported. Until this
    * support is complete, you must either do asynchronous operations on the
    * main thread, or provide an adaptor for a blocking background thread to
-   * execute the operaitions on the main thread.
+   * execute the operations on the main thread.
    */
   PP_ERROR_BLOCKS_MAIN_THREAD = -13,
   PP_ERROR_FILENOTFOUND = -20,
   /** This value indicates failure due to a file that already exists. */
   PP_ERROR_FILEEXISTS = -21,
   /** This value indicates failure due to a file that is too big. */
   PP_ERROR_FILETOOBIG = -22,
   /**
    * This value indicates failure due to a file having been modified
    * unexpectedly.
@@ skipping 31 matching lines @@
    * thread.
    */
   PP_ERROR_WRONG_THREAD = -52
 };
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PP_ERRORS_H_ */