Re-land r93365 - add RefCountedString

chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc

Index: chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc b/chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc
index ca03a93012bdc00f0b5b7cbad9862a5767c32b5e..4f985849f762b09ccf9621da85380c8f41ae8549 100644
--- a/chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.cc
@@ -122,14 +122,10 @@ void ChooseMobileNetworkHTMLSource::StartDataRequest(const std::string& path,
       ResourceBundle::GetSharedInstance().GetRawDataResource(
           IDR_CHOOSE_MOBILE_NETWORK_HTML));
 
-  const std::string& full_html = jstemplate_builder::GetI18nTemplateHtml(
-      html, &strings);
+  std::string full_html = jstemplate_builder::GetI18nTemplateHtml(html,
+                                                                  &strings);
 
-  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes());
-  html_bytes->data.resize(full_html.size());
-  std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
-
-  SendResponse(request_id, html_bytes);
+  SendResponse(request_id, base::RefCountedString::TakeString(&full_html));
 }
 
 // ChooseMobileNetworkHandler implementation.