Newly created profiles should have the grey silhouette as avatar.

chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/ui/webui/signin/user_manager_screen_handler.h"
 
 #include "base/bind.h"
 #include "base/value_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 89 matching lines @@
       info_cache.IsUsingGAIAPictureOfProfileAtIndex(index) &&
       info_cache.GetGAIAPictureOfProfileAtIndex(index);
 
   // If the avatar is too small (i.e. the old-style low resolution avatar),
   // it will be pixelated when displayed in the User Manager, so we should
   // return the placeholder avatar instead.
   gfx::Image avatar_image = info_cache.GetAvatarIconOfProfileAtIndex(index);
   if (avatar_image.Width() <= profiles::kAvatarIconWidth ||
       avatar_image.Height() <= profiles::kAvatarIconHeight ) {
     avatar_image = ui::ResourceBundle::GetSharedInstance().GetImageNamed(
-        IDR_USER_MANAGER_DEFAULT_AVATAR);
+        profiles::GetPlaceholderAvatarIconResourceID());
   }
   gfx::Image resized_image = profiles::GetSizedAvatarIcon(
       avatar_image, is_gaia_picture, kAvatarIconSize, kAvatarIconSize);
   return webui::GetBitmapDataUrl(resized_image.AsBitmap());
 }
 
 size_t GetIndexOfProfileWithEmailAndName(const ProfileInfoCache& info_cache,
                                          const base::string16& email,
                                          const base::string16& name) {
   for (size_t i = 0; i < info_cache.GetNumberOfProfiles(); ++i) {
@@ skipping 423 matching lines @@
   } else {
     web_ui()->CallJavascriptFunction(
         "cr.ui.Oobe.showSignInError",
         base::FundamentalValue(0),
         base::StringValue(
             l10n_util::GetStringUTF8(IDS_LOGIN_ERROR_AUTHENTICATING)),
         base::StringValue(""),
         base::FundamentalValue(0));
   }
 }