[PPAPI] Fix a bunch of spelling mistakes

ppapi/api/private/ppb_flash_clipboard.idl

 /* 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.
  */
 
 /**
  * This file defines the private <code>PPB_Flash_Clipboard</code> API used by
  * Pepper Flash for reading and writing to the clipboard.
  */
 
 label Chrome {
   M19 = 4.0,
   M24 = 5.0
 };
 
 /**
  * This enumeration contains the types of clipboards that can be accessed.
  * These types correspond to clipboard types in WebKit.
  */
 [assert_size(4)]
 enum PP_Flash_Clipboard_Type {
   /** The standard clipboard. */
   PP_FLASH_CLIPBOARD_TYPE_STANDARD = 0,
   /** The selection clipboard (e.g., on Linux). */
   PP_FLASH_CLIPBOARD_TYPE_SELECTION = 1
 };
 
 /**
- * This enumeration contains the predfined clipboard data formats.
+ * This enumeration contains the predefined clipboard data formats.
  */
 [assert_size(4)]
 enum PP_Flash_Clipboard_Format {
   /** Indicates an invalid or unsupported clipboard data format. */
   PP_FLASH_CLIPBOARD_FORMAT_INVALID = 0,
   /**
    * Indicates plaintext clipboard data. The format expected/returned is a
    * <code>PP_VARTYPE_STRING</code>.
    */
   PP_FLASH_CLIPBOARD_FORMAT_PLAINTEXT = 1,
@@ skipping 96 matching lines @@
    * cannot be converted into the format supplied or <code>PP_FAILED</code>
    * if the format is not supported.
    */
   [version=5.0]
   int32_t WriteData([in] PP_Instance instance_id,
       [in] PP_Flash_Clipboard_Type clipboard_type,
       [in] uint32_t data_item_count,
       [in, size_is(data_item_count)] uint32_t[] formats,
       [in, size_is(data_item_count)] PP_Var[] data_items);
 };