Convert JsonWriter::Write to taking a const ref for the in-param

components/policy/core/common/policy_loader_win.cc

 // Copyright (c) 2014 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 "components/policy/core/common/policy_loader_win.h"
 
 #include <windows.h>
 #include <lm.h>       // For limits.
 #include <ntdsapi.h>  // For Ds[Un]Bind
 #include <rpc.h>      // For struct GUID
@@ skipping 110 matching lines @@
         policy_schema->GetString(schema::kType, &type) &&
         type == schema::kArray &&
         !policy_schema->HasKey(schema::kItems)) {
       scoped_ptr<base::DictionaryValue> items(new base::DictionaryValue());
       items->SetString(schema::kType, schema::kString);
       policy_schema->Set(schema::kItems, items.release());
     }
   }
 
   std::string serialized;
-  base::JSONWriter::Write(json.get(), &serialized);
+  base::JSONWriter::Write(*json, &serialized);
   return serialized;
 }
 
 // Verifies that untrusted policies contain only safe values. Modifies the
 // |policy| in place.
 void FilterUntrustedPolicy(PolicyMap* policy) {
   if (base::win::IsEnrolledToDomain())
     return;
 
   int invalid_policies = 0;
@@ skipping 541 matching lines @@
 
 void PolicyLoaderWin::OnObjectSignaled(HANDLE object) {
   DCHECK(object == user_policy_changed_event_.handle() ||
          object == machine_policy_changed_event_.handle())
       << "unexpected object signaled policy reload, obj = "
       << std::showbase << std::hex << object;
   Reload(false);
 }
 
 }  // namespace policy