Re-land r93365 - add RefCountedString

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

Index: chrome/browser/ui/webui/chromeos/system_info_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/system_info_ui.cc b/chrome/browser/ui/webui/chromeos/system_info_ui.cc
index a72b32dba06aa95240d9b4b29a1f45c291bfa927..4128e5f623473bcb9a97a1c7114fe97c3d61f7a9 100644
--- a/chrome/browser/ui/webui/chromeos/system_info_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/system_info_ui.cc
@@ -140,14 +140,10 @@ void SystemInfoUIHTMLSource::SyslogsComplete(
   static const base::StringPiece systeminfo_html(
       ResourceBundle::GetSharedInstance().GetRawDataResource(
           IDR_ABOUT_SYS_HTML));
-  const std::string full_html = jstemplate_builder::GetTemplatesHtml(
+  std::string full_html = jstemplate_builder::GetTemplatesHtml(
       systeminfo_html, &strings, "t" /* template root node id */);
 
-  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));
 }
 
 ////////////////////////////////////////////////////////////////////////////////