Cleanup: Remove unneeded browser_thread.h includes.

chrome/browser/managed_mode/managed_user_sync_service_unittest.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 <string>
 
 #include "base/bind.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/managed_mode/managed_user_sync_service.h"
 #include "chrome/browser/managed_mode/managed_user_sync_service_factory.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
-#include "content/public/browser/browser_thread.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_error_factory_mock.h"
 #include "sync/protocol/sync.pb.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/default_user_images.h"
 #endif
 
 using sync_pb::ManagedUserSpecifics;
@@ skipping 315 matching lines @@
   EXPECT_FALSE(ManagedUserSyncService::GetAvatarIndex("chrome-avatar-index:",
                                                       &avatar));
 
   EXPECT_FALSE(ManagedUserSyncService::GetAvatarIndex("chrome-avatar-index:x",
                                                       &avatar));
 
   EXPECT_FALSE(ManagedUserSyncService::GetAvatarIndex("chromeos-avatar-index:5",
                                                       &avatar));
 #endif
 }