Switch to standard integer types in ppapi/.

ppapi/shared_impl/array_writer.cc

 // 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.
 
 #include "ppapi/shared_impl/array_writer.h"
 
+#include <stddef.h>
+
 #include <algorithm>
 
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/shared_impl/resource_tracker.h"
 #include "ppapi/shared_impl/var.h"
 #include "ppapi/shared_impl/var_tracker.h"
 
 namespace ppapi {
 
@@ skipping 99 matching lines @@
     for (size_t i = 0; i < input.size(); i++)
       PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(input[i]);
     return false;
   }
 
   std::copy(input.begin(), input.end(), static_cast<PP_Var*>(dest));
   return true;
 }
 
 }  // namespace ppapi