Fix a browser crash involving omnibox extension keywords.

chrome/browser/autocomplete/autocomplete_classifier.cc

Index: chrome/browser/autocomplete/autocomplete_classifier.cc
diff --git a/chrome/browser/autocomplete/autocomplete_classifier.cc b/chrome/browser/autocomplete/autocomplete_classifier.cc
index 295970fe3a39e38aa5622a52fabf5e61a4867e86..f3cffd43ace65806d7e43e1c177b20fcad49d3e1 100644
--- a/chrome/browser/autocomplete/autocomplete_classifier.cc
+++ b/chrome/browser/autocomplete/autocomplete_classifier.cc
@@ -19,13 +19,14 @@ AutocompleteClassifier::~AutocompleteClassifier() {
 
 void AutocompleteClassifier::Classify(const string16& text,
                                       const string16& desired_tld,
+                                      bool prefer_keyword,
                                       bool allow_exact_keyword_match,
                                       AutocompleteMatch* match,
                                       GURL* alternate_nav_url) {
   DCHECK(!inside_classify_);
   AutoReset<bool> reset(&inside_classify_, true);
-  controller_->Start(text, desired_tld, true, false, allow_exact_keyword_match,
-                     AutocompleteInput::BEST_MATCH);
+  controller_->Start(text, desired_tld, true, prefer_keyword,
+                     allow_exact_keyword_match, AutocompleteInput::BEST_MATCH);
   DCHECK(controller_->done());
   const AutocompleteResult& result = controller_->result();
   if (result.empty()) {