Moved a bunch of win-specific files to the new win folder in chrome/browser

chrome/browser/app_icon_win.h

-// Copyright (c) 2011 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_APP_ICON_WIN_H_
-#define CHROME_BROWSER_APP_ICON_WIN_H_
-
-#include <windows.h>
-
-#include <memory>
-
-namespace gfx {
-class ImageFamily;
-class Size;
-}
-
-class SkBitmap;
-
-HICON GetAppIcon();
-HICON GetSmallAppIcon();
-
-gfx::Size GetAppIconSize();
-gfx::Size GetSmallAppIconSize();
-
-// Retrieve the application icon for the current process. This returns all of
-// the different sizes of the icon as an ImageFamily.
-std::unique_ptr<gfx::ImageFamily> GetAppIconImageFamily();
-
-#endif  // CHROME_BROWSER_APP_ICON_WIN_H_