Upstreaming mechanism to add query refinement to omnibox searches.

chrome/browser/autocomplete/autocomplete_classifier.cc

 // Copyright (c) 2012 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/autocomplete_classifier.h"
 
 #include "base/auto_reset.h"
 #include "chrome/browser/autocomplete/autocomplete_controller.h"
 #include "chrome/browser/autocomplete/autocomplete_input.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
@@ skipping 35 matching lines @@
 }
 
 void AutocompleteClassifier::Classify(const string16& text,
                                       bool prefer_keyword,
                                       bool allow_exact_keyword_match,
                                       AutocompleteMatch* match,
                                       GURL* alternate_nav_url) {
   DCHECK(!inside_classify_);
   base::AutoReset<bool> reset(&inside_classify_, true);
   controller_->Start(AutocompleteInput(
-      text, string16::npos, string16(), true, prefer_keyword,
+      text, string16::npos, string16(), GURL(), true, prefer_keyword,
       allow_exact_keyword_match, AutocompleteInput::BEST_MATCH));
   DCHECK(controller_->done());
   const AutocompleteResult& result = controller_->result();
   if (result.empty()) {
     if (alternate_nav_url)
       *alternate_nav_url = GURL();
     return;
   }
 
   DCHECK(result.default_match() != result.end());
   *match = *result.default_match();
   if (alternate_nav_url)
     *alternate_nav_url = result.alternate_nav_url();
 }
 
 void AutocompleteClassifier::Shutdown() {
   controller_.reset();
 }