More trivial cleanupi of ppapi/c headers

ppapi/c/pp_instance.h

-/* Copyright (c) 2010 The Chromium Authors. All rights reserved.
+/* Copyright (c) 2011 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_instance.idl modified Sat Jul 16 16:50:26 2011. */
+
 #ifndef PPAPI_C_PP_INSTANCE_H_
 #define PPAPI_C_PP_INSTANCE_H_
 
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_stdint.h"
+
 /**
  * @file
  * This file defines the PP_Instance type which uniquely identifies one module
  * instance.
  */
 
-#include "ppapi/c/pp_macros.h"
-#include "ppapi/c/pp_stdint.h"
 
 /**
  * @addtogroup Typedefs
  * @{
  */
-
 /**
  * The <code>PP_Instance</code> value uniquely identifies one instance of a
  * module (.nexe/PP_Module). There will be one module instance for every
  * \<embed> tag on a page.
  *
  * This identifier is an opaque handle assigned by the browser to the module.
  * It is guaranteed never to be 0, so a module can initialize it to 0 to
  * indicate a "NULL handle."
  */
 typedef int32_t PP_Instance;
 PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_Instance, 4);
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PP_INSTANCE_H_ */