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

chrome/browser/ui/webui/policy_ui.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 "chrome/browser/ui/webui/policy_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 199 matching lines @@
 
 void ExtractDomainFromUsername(base::DictionaryValue* dict) {
   std::string username;
   dict->GetString("username", &username);
   if (!username.empty())
     dict->SetString("domain", gaia::ExtractDomainName(username));
 }
 
 // Utility function that returns a JSON serialization of the given |dict|.
 scoped_ptr<base::StringValue> DictionaryToJSONString(
-    const base::DictionaryValue* dict) {
+    const base::DictionaryValue& dict) {
   std::string json_string;
   base::JSONWriter::WriteWithOptions(dict,
                                      base::JSONWriter::OPTIONS_PRETTY_PRINT,
                                      &json_string);
   return make_scoped_ptr(new base::StringValue(json_string));
 }
 
 // Returns a copy of |value| with some values converted to a representation that
 // i18n_template.js will display in a nicer way.
 scoped_ptr<base::Value> CopyAndConvert(const base::Value* value) {
   const base::DictionaryValue* dict = NULL;
   if (value->GetAsDictionary(&dict))
-    return DictionaryToJSONString(dict);
+    return DictionaryToJSONString(*dict);
 
   scoped_ptr<base::Value> copy(value->DeepCopy());
   base::ListValue* list = NULL;
   if (copy->GetAsList(&list)) {
     for (size_t i = 0; i < list->GetSize(); ++i) {
       if (list->GetDictionary(i, &dict))
-        list->Set(i, DictionaryToJSONString(dict).release());
+        list->Set(i, DictionaryToJSONString(*dict).release());
     }
   }
 
   return copy.Pass();
 }
 
 }  // namespace
 
 // An interface for querying the status of cloud policy.
 class CloudPolicyStatusProvider {
@@ skipping 585 matching lines @@
 }
 
 PolicyUI::PolicyUI(content::WebUI* web_ui) : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new PolicyUIHandler);
   content::WebUIDataSource::Add(Profile::FromWebUI(web_ui),
                                 CreatePolicyUIHTMLSource());
 }
 
 PolicyUI::~PolicyUI() {
 }