Use centered app list position whenever virtual keyboard is enabled.

chrome/browser/ui/app_list/app_list_view_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 CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 68 matching lines @@
   virtual gfx::ImageSkia GetWindowIcon() OVERRIDE;
   virtual void OpenSettings() OVERRIDE;
   virtual void OpenHelp() OVERRIDE;
   virtual void OpenFeedback() OVERRIDE;
   virtual void ToggleSpeechRecognition() OVERRIDE;
   virtual void ShowForProfileByPath(
       const base::FilePath& profile_path) OVERRIDE;
   virtual content::WebContents* GetStartPageContents() OVERRIDE;
   virtual content::WebContents* GetSpeechRecognitionContents() OVERRIDE;
   virtual const Users& GetUsers() const OVERRIDE;
+  virtual bool UseExperimentalAppListPosition() const OVERRIDE;
   virtual gfx::Rect GetVirtualKeyboardBounds() const OVERRIDE;
   virtual void AddObserver(
       app_list::AppListViewDelegateObserver* observer) OVERRIDE;
   virtual void RemoveObserver(
       app_list::AppListViewDelegateObserver* observer) OVERRIDE;
 
   // Overridden from app_list::StartPageObserver:
   virtual void OnSpeechResult(const base::string16& result,
                               bool is_final) OVERRIDE;
   virtual void OnSpeechSoundLevelChanged(int16 level) OVERRIDE;
@@ skipping 42 matching lines @@
   ObserverList<app_list::AppListViewDelegateObserver> observers_;
 
   // Used to track the SigninManagers that this instance is observing so that
   // this instance can be removed as an observer on its destruction.
   ScopedObserver<SigninManagerBase, AppListViewDelegate> scoped_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListViewDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_