[Win] Add a fast profile switcher to the Windows taskbar item.

chrome/browser/profiles/profile_avatar_icon_util.h

 // Copyright 2014 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_PROFILES_PROFILE_AVATAR_ICON_UTIL_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_AVATAR_ICON_UTIL_H_
 
 #include <string>
 
 #include "third_party/skia/include/core/SkColor.h"
@@ skipping 76 matching lines @@
 // image is scaled to fit |dst_width| and |dst_height|.
 gfx::Image GetAvatarIconForTitleBar(const gfx::Image& image,
                                     bool is_rectangle,
                                     int dst_width,
                                     int dst_height);
 
 // Returns a bitmap with a couple of columns shaved off so it is more square,
 // so that when resized to a square aspect ratio it looks pretty.
 SkBitmap GetAvatarIconAsSquare(const SkBitmap& source_bitmap, int scale_factor);
 
+// Sets |image| to the avatar corresponding to the profile at |profile_path| and
+// sets |is_rectangle| to true unless |image| is a built-in profile avatar. For
+// built-in profile avatars, always return the non-high res version.
+void GetTransparentBackgroundProfileAvatar(const base::FilePath& profile_path,
+                                           gfx::Image* image,
+                                           bool* is_rectangle);
+
 }  // namespace profiles
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_AVATAR_ICON_UTIL_H_