Refactors the auto-launch logic and adds tests for it.

ui/app_list/views/search_box_view.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 "ui/app_list/views/search_box_view.h"
 
 #include <algorithm>
 
 #include "grit/ui_resources.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/search_box_model.h"
 #include "ui/app_list/speech_ui_model.h"
 #include "ui/app_list/views/app_list_menu_views.h"
-#include "ui/app_list/views/contents_view.h"
 #include "ui/app_list/views/search_box_view_delegate.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/events/event.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/button/menu_button.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/textfield/textfield.h"
 
 namespace app_list {
@@ skipping 65 matching lines @@
   SpeechRecognitionButtonPropChanged();
   HintTextChanged();
 }
 
 bool SearchBoxView::HasSearch() const {
   return !search_box_->text().empty();
 }
 
 void SearchBoxView::ClearSearch() {
   search_box_->SetText(base::string16());
+  view_delegate_->AutoLaunchCanceled();
   // Updates model and fires query changed manually because SetText() above
   // does not generate ContentsChanged() notification.
   UpdateModel();
   NotifyQueryChanged();
 }
 
 void SearchBoxView::InvalidateMenu() {
   menu_.reset();
 }
 
@@ skipping 61 matching lines @@
 }
 
 void SearchBoxView::NotifyQueryChanged() {
   DCHECK(delegate_);
   delegate_->QueryChanged(this);
 }
 
 void SearchBoxView::ContentsChanged(views::Textfield* sender,
                                     const base::string16& new_contents) {
   UpdateModel();
-  contents_view_->CancelAutoLaunch();
+  view_delegate_->AutoLaunchCanceled();
   NotifyQueryChanged();
 }
 
 bool SearchBoxView::HandleKeyEvent(views::Textfield* sender,
                                    const ui::KeyEvent& key_event) {
   bool handled = false;
   if (contents_view_ && contents_view_->visible())
     handled = contents_view_->OnKeyPressed(key_event);
 
   return handled;
@@ skipping 60 matching lines @@
   NotifyQueryChanged();
 }
 
 void SearchBoxView::OnSpeechRecognitionStateChanged(
     SpeechRecognitionState new_state) {
   SpeechRecognitionButtonPropChanged();
   SchedulePaint();
 }
 
 }  // namespace app_list