Change the native_client chromium build to use the third_party/jsoncpp.

ppapi/native_client/src/trusted/plugin/manifest.h

 /*
  * 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.
  */
 
 // Manifest file processing class.
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_MANIFEST_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_MANIFEST_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "native_client/src/include/nacl_macros.h"
 #include "native_client/src/include/nacl_string.h"
-#include "native_client/src/third_party_mod/jsoncpp/include/json/value.h"
+#include "third_party/jsoncpp/source/include/json/value.h"
 
 namespace pp {
 class URLUtil_Dev;
 }  // namespace pp
 
 namespace plugin {
 
 class ErrorInfo;
 
 class Manifest {
@@ skipping 64 matching lines @@
   // if not.
   bool MatchesSchema(ErrorInfo* error_info);
 
   NACL_DISALLOW_COPY_AND_ASSIGN(Manifest);
 };
 
 
 }  // namespace plugin
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_MANIFEST_H_