Move RefCountedMemory class to base namespace.

chrome/browser/ui/webui/options2/options_ui2.cc

Index: chrome/browser/ui/webui/options2/options_ui2.cc
===================================================================
--- chrome/browser/ui/webui/options2/options_ui2.cc	(revision 134496)
+++ chrome/browser/ui/webui/options2/options_ui2.cc	(working copy)
@@ -137,7 +137,7 @@
 void OptionsUIHTMLSource::StartDataRequest(const std::string& path,
                                             bool is_incognito,
                                             int request_id) {
-  scoped_refptr<RefCountedMemory> response_bytes;
+  scoped_refptr<base::RefCountedMemory> response_bytes;
   SetFontAndTextDirection(localized_strings_.get());
 
   if (path == kLocalizedStringsFile) {
@@ -360,7 +360,7 @@
 }
 
 // static
-RefCountedMemory* OptionsUI::GetFaviconResourceBytes() {
+base::RefCountedMemory* OptionsUI::GetFaviconResourceBytes() {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytes(IDR_SETTINGS_FAVICON);
 }