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

content/browser/accessibility/accessibility_ui.cc

 // Copyright (c) 2013 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 "content/browser/accessibility/accessibility_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 98 matching lines @@
         continue;
     RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
     BrowserContext* context = rwhi->GetProcess()->GetBrowserContext();
     if (context != current_context)
       continue;
 
     RenderViewHost* rvh = RenderViewHost::From(widget);
     rvh_list->Append(BuildTargetDescriptor(rvh));
   }
 
-  scoped_ptr<base::DictionaryValue> data(new base::DictionaryValue());
-  data->Set("list", rvh_list.release());
-  data->SetInteger(
+  base::DictionaryValue data;
+  data.Set("list", rvh_list.release());
+  data.SetInteger(
       "global_a11y_mode",
       BrowserAccessibilityStateImpl::GetInstance()->accessibility_mode());
 
   std::string json_string;
-  base::JSONWriter::Write(data.get(), &json_string);
+  base::JSONWriter::Write(data, &json_string);
 
   callback.Run(base::RefCountedString::TakeString(&json_string));
   return true;
 }
 
 }  // namespace
 
 AccessibilityUI::AccessibilityUI(WebUI* web_ui) : WebUIController(web_ui) {
   // Set up the chrome://accessibility source.
   WebUIDataSource* html_source =
@@ skipping 96 matching lines @@
   formatter->SetFilters(filters);
   formatter->FormatAccessibilityTree(&accessibility_contents_utf16);
 
   result->Set("tree",
               new base::StringValue(
                   base::UTF16ToUTF8(accessibility_contents_utf16)));
   web_ui()->CallJavascriptFunction("accessibility.showTree", *(result.get()));
 }
 
 }  // namespace content