Fix a browser crash involving omnibox extension keywords.

chrome/browser/autocomplete/autocomplete_classifier.h

 // 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.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CLASSIFIER_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CLASSIFIER_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 
 class AutocompleteController;
 struct AutocompleteMatch;
 class GURL;
 class Profile;
 
 class AutocompleteClassifier {
  public:
   explicit AutocompleteClassifier(Profile* profile);
   virtual ~AutocompleteClassifier();
 
   // Given some string |text| that the user wants to use for navigation,
   // determines how it should be interpreted.  |desired_tld| is the user's
   // desired TLD, if any; see AutocompleteInput::desired_tld().
+  // |prefer_keyword| should be true the when keyword UI is onscreen; see
+  // comments on AutocompleteController::Start().
   // |allow_exact_keyword_match| should be true when treating the string as a
   // potential keyword search is valid; see
   // AutocompleteInput::allow_exact_keyword_match(). |match| should be a
   // non-NULL outparam that will be set to the default match for this input, if
   // any (for invalid input, there will be no default match, and |match| will be
   // left unchanged).  |alternate_nav_url| is a possibly-NULL outparam that, if
   // non-NULL, will be set to the navigational URL (if any) in case of an
   // accidental search; see comments on
   // AutocompleteResult::alternate_nav_url_ in autocomplete.h.
   void Classify(const string16& text,
                 const string16& desired_tld,
+                bool prefer_keyword,
                 bool allow_exact_keyword_match,
                 AutocompleteMatch* match,
                 GURL* alternate_nav_url);
 
  private:
   scoped_ptr<AutocompleteController> controller_;
 
   // Are we currently in Classify? Used to verify Classify isn't invoked
   // recursively, since this can corrupt state and cause crashes.
   bool inside_classify_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(AutocompleteClassifier);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_CLASSIFIER_H_