Add #ifdefs to separate NaCl and non-NaCl PPAPI Proxy code.

ppapi/proxy/ppapi_param_traits.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.
 
 #ifndef PPAPI_PROXY_PPAPI_PARAM_TRAITS_H_
 #define PPAPI_PROXY_PPAPI_PARAM_TRAITS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 129 matching lines @@
 
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits< std::vector<
     ppapi::PPB_FileRef_CreateInfo> > {
   typedef std::vector<ppapi::PPB_FileRef_CreateInfo> param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
+#if !defined(OS_NACL)
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::proxy::SerializedFlashMenu> {
   typedef ppapi::proxy::SerializedFlashMenu param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template<>
 struct PPAPI_PROXY_EXPORT ParamTraits<ppapi::PPB_X509Certificate_Fields> {
   typedef ppapi::PPB_X509Certificate_Fields param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
+#endif  // !defined(OS_NACL)
 
 }  // namespace IPC
 
 #endif  // PPAPI_PROXY_PPAPI_PARAM_TRAITS_H_