Re-land r93365 - add RefCountedString

chrome/browser/ui/webui/sessions_ui.cc

Index: chrome/browser/ui/webui/sessions_ui.cc
diff --git a/chrome/browser/ui/webui/sessions_ui.cc b/chrome/browser/ui/webui/sessions_ui.cc
index 7b2ed5c42e571ae10323e8d6c685129df40d3d13..9d3d6c1dd26539b6b10e26b329fbffbb805aed81 100644
--- a/chrome/browser/ui/webui/sessions_ui.cc
+++ b/chrome/browser/ui/webui/sessions_ui.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/ui/webui/sessions_ui.h"
 
+#include <algorithm>
+
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/engine/syncapi.h"
 #include "chrome/browser/sync/glue/session_model_associator.h"
@@ -77,11 +79,7 @@ void SessionsUIHTMLSource::StartDataRequest(const std::string& path,
                                               &localized_strings);
   jstemplate_builder::AppendJsTemplateSourceHtml(&full_html);
 
-  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));
 }
 
 ////////////////////////////////////////////////////////////////////////////////