Switch to standard integer types in ppapi/.

ppapi/cpp/private/var_private.cc

 // 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.
 
 #include "ppapi/cpp/private/var_private.h"
 
+#include <stddef.h>
+
 #include "ppapi/c/dev/ppb_memory_dev.h"
 #include "ppapi/c/dev/ppb_var_deprecated.h"
 #include "ppapi/cpp/instance_handle.h"
 #include "ppapi/cpp/private/instance_private.h"
 #include "ppapi/cpp/logging.h"
 #include "ppapi/cpp/module_impl.h"
 #include "ppapi/cpp/dev/scriptable_object_deprecated.h"
 
 namespace pp {
 
@@ skipping 164 matching lines @@
                             const Var& arg2, const Var& arg3, const Var& arg4,
                             Var* exception) {
   if (!has_interface<PPB_Var_Deprecated>())
     return Var();
   PP_Var args[4] = {arg1.pp_var(), arg2.pp_var(), arg3.pp_var(), arg4.pp_var()};
   return Var(PassRef(), get_interface<PPB_Var_Deprecated>()->Call(
       var_, method_name.pp_var(), 4, args, OutException(exception).get()));
 }
 
 }  // namespace pp