[PPAPI] Fix a bunch of spelling mistakes

ppapi/c/pp_file_info.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_file_info.idl modified Mon Nov 14 10:36:01 2011. */
+/* From pp_file_info.idl modified Thu Mar 28 11:11:01 2013. */
 
 #ifndef PPAPI_C_PP_FILE_INFO_H_
 #define PPAPI_C_PP_FILE_INFO_H_
 
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_time.h"
 
 /**
  * @file
@@ skipping 19 matching lines @@
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_FileType, 4);
 
 /**
  * The <code>PP_FileSystemType</code> enum contains file system type constants.
  */
 typedef enum {
   /** For identified invalid return values */
   PP_FILESYSTEMTYPE_INVALID = 0,
   /** For external file system types */
   PP_FILESYSTEMTYPE_EXTERNAL = 1,
-  /** For local persistant file system types */
+  /** For local persistent file system types */
   PP_FILESYSTEMTYPE_LOCALPERSISTENT = 2,
   /** For local temporary file system types */
   PP_FILESYSTEMTYPE_LOCALTEMPORARY = 3
 } PP_FileSystemType;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_FileSystemType, 4);
 /**
  * @}
  */
 
 /**
@@ skipping 30 matching lines @@
    */
   PP_Time last_modified_time;
 };
 PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_FileInfo, 40);
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PP_FILE_INFO_H_ */