aura: Implement new app list mock.

ash/shell_delegate.h

 // 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.
 
 #ifndef ASH_SHELL_DELEGATE_H_
 #define ASH_SHELL_DELEGATE_H_
 #pragma once
 
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/callback.h"
 #include "base/string16.h"
 
 namespace aura {
 class Window;
 }
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 
-class AppListModel;
 class AppListViewDelegate;
 class LauncherDelegate;
 class LauncherModel;
 struct LauncherItem;
 class ScreenshotDelegate;
 class SystemTrayDelegate;
 
 // Delegate of the Shell.
 class ASH_EXPORT ShellDelegate {
  public:
@@ skipping 18 matching lines @@
   virtual views::Widget* CreateStatusArea() = 0;
 
 #if defined(OS_CHROMEOS)
   // Invoked when a user uses Ctrl-Shift-L to lock the screen.
   virtual void LockScreen() = 0;
 #endif
 
   // Invoked when a user uses Ctrl-Shift-Q to close chrome.
   virtual void Exit() = 0;
 
-  // Invoked to ask the delegate to populate the |model|.
-  virtual void BuildAppListModel(AppListModel* model) = 0;
-
   // Invoked to create an AppListViewDelegate. Shell takes the ownership of
   // the created delegate.
   virtual AppListViewDelegate* CreateAppListViewDelegate() = 0;
 
   // Returns a list of windows to cycle with keyboard shortcuts (e.g. alt-tab
   // or the window switching key).  If |order_by_activity| is true then windows
   // are returned in most-recently-used order with the currently active window
   // at the front of the list.  Otherwise any order may be returned.  The list
   // does not contain NULL pointers.
   virtual std::vector<aura::Window*> GetCycleWindowList(
       CycleSource source,
       CycleOrder order) const = 0;
 
   // Invoked to start taking partial screenshot.
   virtual void StartPartialScreenshot(
       ScreenshotDelegate* screenshot_delegate) = 0;
 
   // Creates a new LauncherDelegate. Shell takes ownership of the returned
   // value.
   virtual LauncherDelegate* CreateLauncherDelegate(
       ash::LauncherModel* model) = 0;
 
   // Creates a system-tray delegate. Shell takes ownership of the delegate.
   virtual SystemTrayDelegate* CreateSystemTrayDelegate() = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_