Fix a browser crash involving omnibox extension keywords.

chrome/browser/autocomplete/search_provider.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/autocomplete/search_provider.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/callback.h"
@@ skipping 613 matching lines @@
     //    autocompleting this term, so we don't need to worry about confusion as
     //    much.  This also prevents calling Classify() again from inside the
     //    classifier (which will corrupt state and likely crash), since the
     //    classifier always disabled inline autocomplete.
     //  * When the user has typed the whole term, the "what you typed" history
     //    match will outrank us for URL-like inputs anyway, so we need not do
     //    anything special.
     if (!input_.prevent_inline_autocomplete() && classifier &&
         i->term != input_.text()) {
       AutocompleteMatch match;
-      classifier->Classify(i->term, string16(), false, &match, NULL);
+      classifier->Classify(i->term, string16(), false, false, &match, NULL);
       term_looks_like_url = match.transition == PageTransition::TYPED;
     }
     int relevance = CalculateRelevanceForHistory(i->time, term_looks_like_url,
                                                  is_keyword);
     if (i != results.begin() && relevance >= last_relevance)
       relevance = last_relevance - 1;
     last_relevance = relevance;
     AddMatchToMap(i->term,
                   is_keyword ? keyword_input_text_ : input_.text(),
                   relevance,
@@ skipping 260 matching lines @@
         match.description_class.push_back(
             ACMatchClassification(0, ACMatchClassification::DIM));
         // Only the first search match gets a description.
         return;
 
       default:
         break;
     }
   }
 }