Optimization: not sending answer server requests for voice queries.

ui/app_list/views/app_list_main_view.cc

 // Copyright 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 "ui/app_list/views/app_list_main_view.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 69 matching lines @@
   contents_view_ = new ContentsView(this);
   contents_view_->Init(model_);
   AddChildView(contents_view_);
 
   search_box_view_->set_contents_view(contents_view_);
 
   contents_view_->SetPaintToLayer();
   contents_view_->layer()->SetFillsBoundsOpaquely(false);
   contents_view_->layer()->SetMasksToBounds(true);
 
-  delegate_->StartSearch();
+  // Clear the old query and start search.
+  search_box_view_->ClearSearch();
 }
 
 void AppListMainView::ShowAppListWhenReady() {
   GetWidget()->Show();
 }
 
 void AppListMainView::ResetForShow() {
   contents_view_->SetActiveState(AppListModel::STATE_START);
   contents_view_->apps_container_view()->ResetForShowApps();
   // We clear the search when hiding so when app list appears it is not showing
@@ skipping 111 matching lines @@
     contents_view_->search_results_page_view()->SetSelection(select);
 }
 
 void AppListMainView::OnResultInstalled(SearchResult* result) {
   // Clears the search to show the apps grid. The last installed app
   // should be highlighted and made visible already.
   search_box_view_->ClearSearch();
 }
 
 }  // namespace app_list