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

chrome/browser/autocomplete/search_provider.h

Index: chrome/browser/autocomplete/search_provider.h
===================================================================
--- chrome/browser/autocomplete/search_provider.h	(revision 91576)
+++ chrome/browser/autocomplete/search_provider.h	(working copy)
@@ -232,12 +232,14 @@
   // Determines the relevance for a particular match.  We use different scoring
   // algorithms for the different types of matches.
   int CalculateRelevanceForWhatYouTyped() const;
-  // |time| is the time at which this query was last seen. |is_keyword| is true
-  // if the search is from the keyword provider. |looks_like_url| is true if the
-  // search term would be treated as a URL if typed into the omnibox.
+  // |time| is the time at which this query was last seen.
+  // |is_primary_provider| is true if this match comes from the primary provider
+  // for the user's input (e.g. the keyword provider for a keyword input).
+  // |prevent_inline_autocomplete| is true if we should not inline autocomplete
+  // this query.
   int CalculateRelevanceForHistory(const base::Time& time,
-                                   bool looks_like_url,
-                                   bool is_keyword) const;
+                                   bool is_primary_provider,
+                                   bool prevent_inline_autocomplete) const;
   // |result_number| is the index of the suggestion in the result set from the
   // server; the best suggestion is suggestion number 0.  |is_keyword| is true
   // if the search is from the keyword provider.