Move app list from ash to ui.

chrome/browser/ui/views/ash/app_list/app_list_view_delegate.cc

Index: chrome/browser/ui/views/ash/app_list/app_list_view_delegate.cc
===================================================================
--- chrome/browser/ui/views/ash/app_list/app_list_view_delegate.cc	(revision 135932)
+++ chrome/browser/ui/views/ash/app_list/app_list_view_delegate.cc	(working copy)
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/ui/views/ash/app_list/app_list_view_delegate.h"
 
+#include "ash/shell.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/views/ash/app_list/app_list_model_builder.h"
 #include "chrome/browser/ui/views/ash/app_list/chrome_app_list_item.h"
@@ -14,7 +15,7 @@
 AppListViewDelegate::~AppListViewDelegate() {
 }
 
-void AppListViewDelegate::SetModel(ash::AppListModel* model) {
+void AppListViewDelegate::SetModel(app_list::AppListModel* model) {
   if (model) {
     if (!model_builder_.get()) {
       model_builder_.reset(
@@ -33,7 +34,13 @@
 }
 
 void AppListViewDelegate::OnAppListItemActivated(
-    ash::AppListItemModel* item,
+    app_list::AppListItemModel* item,
     int event_flags) {
   static_cast<ChromeAppListItem*>(item)->Activate(event_flags);
 }
+
+void AppListViewDelegate::Close()  {
+  DCHECK(ash::Shell::HasInstance());
+  if (ash::Shell::GetInstance()->GetAppListTargetVisibility())
+    ash::Shell::GetInstance()->ToggleAppList();
+}