Introduce App Launcher for Windows.

chrome/browser/ui/app_list/app_list_view_delegate.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/ui/app_list/app_list_view_delegate.h"
 
+#include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/app_list/apps_model_builder.h"
 #include "chrome/browser/ui/app_list/chrome_app_list_item.h"
 #include "chrome/browser/ui/app_list/search_builder.h"
 #include "content/public/browser/user_metrics.h"
 
 AppListViewDelegate::AppListViewDelegate(AppListController* controller)
-    : controller_(controller) {}
+    : controller_(controller) {
+  browser::StartKeepAlive();
+}
 
-AppListViewDelegate::~AppListViewDelegate() {}
+AppListViewDelegate::~AppListViewDelegate() {
+  browser::EndKeepAlive();
+}
 
 void AppListViewDelegate::SetModel(app_list::AppListModel* model) {
   if (model) {
     Profile* profile = ProfileManager::GetDefaultProfileOrOffTheRecord();
     apps_builder_.reset(new AppsModelBuilder(profile,
                                              model->apps(),
                                              controller_.get()));
     apps_builder_->Build();
 
     search_builder_.reset(new SearchBuilder(profile,
@@ skipping 34 matching lines @@
     const app_list::SearchResult& result,
     int action_index,
     int event_flags) {
   if (search_builder_.get())
     search_builder_->InvokeResultAction(result, action_index, event_flags);
 }
 
 void AppListViewDelegate::Close()  {
   controller_->CloseView();
 }
+
+gfx::ImageSkia AppListViewDelegate::GetWindowAppIcon() {
+  return controller_->GetWindowAppIcon();
+}