Revert of Sets the default background color of inline signin and user manager to grey

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 13 matching lines @@
 // Avatar access.
 extern const char kGAIAPictureFileName[];
 extern const char kHighResAvatarFolderName[];
 
 // Avatar formatting.
 extern const int kAvatarIconWidth;
 extern const int kAvatarIconHeight;
 extern const SkColor kAvatarTutorialBackgroundColor;
 extern const SkColor kAvatarTutorialContentTextColor;
 extern const SkColor kAvatarBubbleAccountsBackgroundColor;
-extern const SkColor kAvatarBubbleGaiaBackgroundColor;
-extern const SkColor kUserManagerBackgroundColor;
 
 // Gets the number of default avatar icons that exist.
 size_t GetDefaultAvatarIconCount();
 
 // Gets the index for the (grey silhouette) avatar used as a placeholder.
 int GetPlaceholderAvatarIndex();
 
 // Gets the resource ID of the placeholder avatar icon.
 int GetPlaceholderAvatarIconResourceID();
 
@@ skipping 44 matching lines @@
                                     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);
 
 }  // namespace profiles
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_AVATAR_ICON_UTIL_H_