Re-land r93365 - add RefCountedString

chrome/browser/printing/cloud_print/cloud_print_setup_source.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/printing/cloud_print/cloud_print_setup_source.h"
 
-#include <algorithm>
-
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/google/google_util.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "googleurl/src/gurl.h"
 #include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
@@ skipping 93 matching lines @@
     static const base::StringPiece html(ResourceBundle::GetSharedInstance()
         .GetRawDataResource(IDR_CLOUD_PRINT_SETUP_DONE_HTML));
     SetFontAndTextDirection(dict);
     response = jstemplate_builder::GetI18nTemplateHtml(html, dict);
   } else if (path_raw == kCloudPrintSetupFlowPath) {
     static const base::StringPiece html(
         ResourceBundle::GetSharedInstance()
         .GetRawDataResource(IDR_CLOUD_PRINT_SETUP_FLOW_HTML));
     response = html.as_string();
   }
-  // Send the response.
-  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
-  html_bytes->data.resize(response.size());
-  std::copy(response.begin(), response.end(), html_bytes->data.begin());
-  SendResponse(request_id, html_bytes);
+
+  SendResponse(request_id, base::RefCountedString::TakeString(&response));
 }
 
 std::string CloudPrintSetupSource::GetMimeType(const std::string& path) const {
   return "text/html";
 }
 
 std::string CloudPrintSetupSource::GetLocalizedUrl(
     const std::string& url) const {
   GURL original_url(url);
   DCHECK(original_url.is_valid());
   GURL localized_url = google_util::AppendGoogleLocaleParam(original_url);
   return localized_url.spec();
 }