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

chrome/browser/history/history_types.h

Index: chrome/browser/history/history_types.h
===================================================================
--- chrome/browser/history/history_types.h	(revision 92729)
+++ chrome/browser/history/history_types.h	(working copy)
@@ -528,11 +528,9 @@
   KeywordSearchTermVisit();
   ~KeywordSearchTermVisit();
 
-  // The time of the visit.
-  base::Time time;
-
-  // The search term that was used.
-  string16 term;
+  string16 term;    // The search term that was used.
+  int visits;       // The visit count.
+  base::Time time;  // The time of the most recent visit.
 };
 
 // KeywordSearchTermRow --------------------------------------------------------
@@ -542,14 +540,9 @@
   KeywordSearchTermRow();
   ~KeywordSearchTermRow();
 
-  // ID of the keyword.
-  TemplateURLID keyword_id;
-
-  // ID of the url.
-  URLID url_id;
-
-  // The search term that was used.
-  string16 term;
+  TemplateURLID keyword_id;  // ID of the keyword.
+  URLID url_id;              // ID of the url.
+  string16 term;             // The search term that was used.
 };
 
 // MostVisitedURL --------------------------------------------------------------