Remove old web app code it's no longer needed. Simplifies startup a little.

chrome/browser/web_app_icon_manager.h

-// Copyright (c) 2006-2008 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_WEB_APP_ICON_MANAGER_H__
-#define CHROME_BROWSER_WEB_APP_ICON_MANAGER_H__
-
-#include <windows.h>
-
-#include "base/scoped_ptr.h"
-#include "chrome/browser/web_app.h"
-
-class TabContents;
-
-// WebAppIconManager is used by SimpleXPFrame/SimpleVistaFrame to manage the
-// icons for the frame. If the current contents are a web app, then icon is
-// set from the app, otherwise the icons are set to the default.
-class WebAppIconManager : public WebApp::Observer {
- public:
-  explicit WebAppIconManager(HWND parent);
-  ~WebAppIconManager();
-
-  // Sets the contents the WebApp should come from. If the contents has a web
-  // app, the image comes from it, otherwise the icon for the HWND is set to
-  // the default chrome icon.
-  void SetContents(TabContents* contents);
-
-  // Enables/disables icons. If true and this WebAppIconManager was previously
-  // disabled, the icon is updated immediately.
-  void SetUpdatesEnabled(bool enabled);
-
- private:
-  // Invoked when the icons of the WebApp has changed. Invokes
-  // UpdateIconsFromApp appropriately.
-  virtual void WebAppImagesChanged(WebApp* web_app);
-
-  // Updates the icons of the HWND, unless we're disabled in which case this
-  // does nothing.
-  void UpdateIconsFromApp();
-
-  // HWND the icon is updated on.
-  const HWND hwnd_;
-
-  // Current app, may be null.
-  scoped_refptr<WebApp> app_;
-
-  // Icons. These are only valid if the app doesn't have an icon.
-  HICON small_icon_;
-  HICON big_icon_;
-
-  // Are we enabled? If not, we won't update the icons of the HWND.
-  bool enabled_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(WebAppIconManager);
-};
-
-#endif  // CHROME_BROWSER_WEB_APP_ICON_MANAGER_H__
-