Check if the theme supplier is an extension.

chrome/browser/themes/theme_service.cc

 // Copyright (c) 2012 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/themes/theme_service.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/prefs/pref_service.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 456 matching lines @@
 }
 
 void ThemeService::OnManagedUserInitialized() {
   // Currently when creating a supervised user, the ThemeService is initialized
   // before the boolean flag indicating the profile belongs to a supervised
   // user gets set. In order to get the custom managed user theme, we get a
   // callback when ManagedUserService is initialized, which happens some time
   // after the boolean flag has been set in
   // ProfileManager::InitProfileUserPrefs() and after the
   // NOTIFICATION_EXTENSIONS_READY notification is sent.
-  if (theme_supplier_.get() || !IsManagedUser())
+  if ((theme_supplier_.get() &&
+       (theme_supplier_->get_theme_type() == CustomThemeSupplier::EXTENSION ||
+        theme_supplier_->get_theme_type() ==
+            CustomThemeSupplier::MANAGED_USER_THEME)) ||
+      !IsManagedUser()) {
     return;
+  }
 
   SetManagedUserTheme();
 }
 
 void ThemeService::OnInfobarDisplayed() {
   number_of_infobars_++;
 }
 
 void ThemeService::OnInfobarDestroyed() {
   number_of_infobars_--;
 
   if (number_of_infobars_ == 0)
     RemoveUnusedThemes();
 }
 
 ThemeSyncableService* ThemeService::GetThemeSyncableService() const {
   return theme_syncable_service_.get();
 }