Upstreaming mechanism to add query refinement to omnibox searches.

chrome/browser/ui/app_list/search_builder.cc

 // Copyright (c) 2013 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/ui/app_list/search_builder.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 326 matching lines @@
 }
 
 SearchBuilder::~SearchBuilder() {
 }
 
 void SearchBuilder::StartSearch() {
   // Omnibox features such as keyword selection/accepting and instant query
   // are not implemented.
   // TODO(xiyuan): Figure out the features that need to support here.
   controller_->Start(AutocompleteInput(search_box_->text(), string16::npos,
-                                       string16(), false, false, true,
+                                       string16(), GURL(), false, false, true,
                                        AutocompleteInput::ALL_MATCHES));
 }
 
 void SearchBuilder::StopSearch() {
   controller_->Stop(true);
 }
 
 void SearchBuilder::OpenResult(const app_list::SearchResult& result,
                                int event_flags) {
   const SearchBuilderResult* builder_result =
@@ skipping 94 matching lines @@
     result->Init(profile_, *it);
     results_->Add(result);
   }
 }
 
 void SearchBuilder::OnResultChanged(bool default_match_changed) {
   // TODO(xiyuan): Handle default match properly.
   const AutocompleteResult& ac_result = controller_->result();
   PopulateFromACResult(ac_result);
 }