Remove implicit conversions from scoped_refptr to T* in chrome/browser/autocomplete/

chrome/browser/autocomplete/shortcuts_provider.cc

Index: chrome/browser/autocomplete/shortcuts_provider.cc
diff --git a/chrome/browser/autocomplete/shortcuts_provider.cc b/chrome/browser/autocomplete/shortcuts_provider.cc
index a37f51d007a86d23058d91720140f6f54dfde1ab..a69b391c18eba1b960674c4ed03aac6e9d16d49e 100644
--- a/chrome/browser/autocomplete/shortcuts_provider.cc
+++ b/chrome/browser/autocomplete/shortcuts_provider.cc
@@ -101,7 +101,7 @@ void ShortcutsProvider::DeleteMatch(const AutocompleteMatch& match) {
   // of history entirely. So nuke all shortcuts that map to this URL.
   scoped_refptr<ShortcutsBackend> backend =
       ShortcutsBackendFactory::GetForProfileIfExists(profile_);
-  if (backend) // Can be NULL in Incognito.
+  if (backend.get())  // Can be NULL in Incognito.
     backend->DeleteShortcutsWithURL(url);
 
   matches_.erase(std::remove_if(matches_.begin(), matches_.end(),