Revert "Integrate NaCl Head - Revert 69309 to restore 64b handles in PPAPI"

ppapi/c/pp_resource.h

 /* Copyright (c) 2010 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.
  */
 #ifndef PPAPI_C_PP_RESOURCE_H_
 #define PPAPI_C_PP_RESOURCE_H_
 
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_stdint.h"
 
@@ skipping 12 matching lines @@
  *
  * Resources are reference counted. Use AddRefResource and ReleaseResource to
  * manage your reference count of a resource. The data will be automatically
  * destroyed when the internal reference count reaches 0.
  *
  * Value is an opaque handle assigned by the browser to the resource. It is
  * guaranteed never to be 0 for a valid resource, so a plugin can initialize
  * it to 0 to indicate a "NULL handle." Some interfaces may return a NULL
  * resource to indicate failure.
  */
-typedef int64_t PP_Resource;
-PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_Resource, 8);
+typedef int32_t PP_Resource;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_Resource, 4);
 
 /**
  * @}
  * End addtogroup PP
  */
 
 #endif  /* PPAPI_C_PP_RESOURCE_H_ */