Remove old (dead) app list code.

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 <stdint.h>
 
 #include <memory>
@@ skipping 94 matching lines @@
   void ShowForProfileByPath(const base::FilePath& profile_path) override;
 #if defined(TOOLKIT_VIEWS)
   views::View* CreateStartPageWebView(const gfx::Size& size) override;
   std::vector<views::View*> CreateCustomPageWebViews(
       const gfx::Size& size) override;
   void CustomLauncherPageAnimationChanged(double progress) override;
   void CustomLauncherPagePopSubpage() override;
 #endif
   bool IsSpeechRecognitionEnabled() override;
   const Users& GetUsers() const override;
-  bool ShouldCenterWindow() const override;
   void AddObserver(app_list::AppListViewDelegateObserver* observer) override;
   void RemoveObserver(app_list::AppListViewDelegateObserver* observer) override;
 
   // Overridden from TemplateURLServiceObserver:
   void OnTemplateURLServiceChanged() override;
 
  private:
   // Updates the speech webview and start page for the current |profile_|.
   void SetUpSearchUI();
 
@@ skipping 79 matching lines @@
   // Window contents of additional custom launcher pages.
   ScopedVector<apps::CustomLauncherPageContents> custom_page_contents_;
 
   // Registers for NOTIFICATION_APP_TERMINATING to unload custom launcher pages.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListViewDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_