Re-land r93365 - add RefCountedString

chrome/browser/ui/webui/workers_ui.cc

 // 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.
 
 #include "chrome/browser/ui/webui/workers_ui.h"
 
 #include "base/json/json_writer.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
@@ skipping 83 matching lines @@
         worker_data->SetString(kUrlField, i->url().spec());
         worker_data->SetString(kNameField, i->name());
         worker_data->SetInteger(kPidField, worker->pid());
         workers_list.Append(worker_data);
       }
     }
 
     std::string json_string;
     base::JSONWriter::Write(&workers_list, false, &json_string);
 
-    scoped_refptr<RefCountedBytes> json_bytes(new RefCountedBytes());
-    json_bytes->data.resize(json_string.size());
-    std::copy(json_string.begin(), json_string.end(), json_bytes->data.begin());
-
-    SendResponse(request_id, json_bytes);
+    SendResponse(request_id, base::RefCountedString::TakeString(&json_string));
 }
 
 class WorkersDOMHandler : public WebUIMessageHandler {
  public:
   WorkersDOMHandler() {}
   virtual ~WorkersDOMHandler() {}
 
  private:
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages();
@@ skipping 35 matching lines @@
 WorkersUI::WorkersUI(TabContents* contents) : ChromeWebUI(contents) {
   WorkersDOMHandler* handler = new WorkersDOMHandler();
   AddMessageHandler(handler);
   handler->Attach(this);
 
   WorkersUIHTMLSource* html_source = new WorkersUIHTMLSource();
 
   // Set up the chrome://workers/ source.
   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 }