[PPAPI] Fix a bunch of spelling mistakes

ppapi/c/private/ppp_instance_private.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 private/ppp_instance_private.idl modified Tue Oct  2 13:42:46 2012. */
+/* From private/ppp_instance_private.idl modified Thu Mar 28 10:22:54 2013. */
 
 #ifndef PPAPI_C_PRIVATE_PPP_INSTANCE_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPP_INSTANCE_PRIVATE_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/c/pp_var.h"
 
@@ skipping 21 matching lines @@
   /**
    * GetInstanceObject returns a PP_Var representing the scriptable object for
    * the given instance. Normally this will be a PPP_Class_Deprecated object
    * that exposes methods and properties to JavaScript.
    *
    * On Failure, the returned PP_Var should be a "void" var.
    *
    * The returned PP_Var should have a reference added for the caller, which
    * will be responsible for Release()ing that reference.
    *
-   * @param[in] instance A PP_Instance indentifying the instance from which the
+   * @param[in] instance A PP_Instance identifying the instance from which the
    *            instance object is being requested.
    * @return A PP_Var containing scriptable object.
    */
   struct PP_Var (*GetInstanceObject)(PP_Instance instance);
 };
 
 typedef struct PPP_Instance_Private_0_1 PPP_Instance_Private;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPP_INSTANCE_PRIVATE_H_ */