Don't autocomplete searches of >1 word if they've only been visited once and the user has not yet...

chrome/browser/autocomplete/autocomplete.h

Index: chrome/browser/autocomplete/autocomplete.h
===================================================================
--- chrome/browser/autocomplete/autocomplete.h	(revision 92729)
+++ chrome/browser/autocomplete/autocomplete.h	(working copy)
@@ -490,6 +490,13 @@
     bool is_history_what_you_typed_match;
   };
 
+  // Max number of matches we'll show from the various providers.
+  static const size_t kMaxMatches;
+
+  // The lowest score a match can have and still potentially become the default
+  // match for the result set.
+  static const int kLowestDefaultScore;
+
   AutocompleteResult();
   ~AutocompleteResult();
 
@@ -544,9 +551,6 @@
   void Validate() const;
 #endif
 
-  // Max number of matches we'll show from the various providers.
-  static const size_t kMaxMatches;
-
  private:
   typedef std::map<AutocompleteProvider*, ACMatches> ProviderToMatches;