[Coverity] Pass AutocompleteMatch to predicate as const-ref

CID=100203
BUG=none
TEST=none


Review URL: http://codereview.chromium.org/9160032

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@120725 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/autocomplete/shortcuts_provider.cc

@@ -40,7 +40,7 @@ class RemoveMatchPredicate {
   explicit RemoveMatchPredicate(const std::set<GURL>& urls)
       : urls_(urls) {
   }
-  bool operator()(AutocompleteMatch match) {
+  bool operator()(const AutocompleteMatch& match) {
     return urls_.find(match.destination_url) != urls_.end();
   }
  private: