Fix build error.

chrome_frame/test/net/fake_external_tab.cc

 // Copyright (c) 2009 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_frame/test/net/fake_external_tab.h"
 
 #include <exdisp.h>
 
 #include "app/app_paths.h"
 #include "app/resource_bundle.h"
@@ skipping 127 matching lines @@
 }
 
 CFUrlRequestUnittestRunner::CFUrlRequestUnittestRunner(int argc, char** argv)
     : NetTestSuite(argc, argv),
       chrome_frame_html_("/chrome_frame", kChromeFrameHtml) {
   fake_chrome_.Initialize();
   pss_subclass_.reset(new ProcessSingletonSubclass(this));
   EXPECT_TRUE(pss_subclass_->Subclass(fake_chrome_.user_data()));
   StartChromeFrameInHostBrowser();
   // Register the main thread by instantiating it, but don't call any methods.
-  main_thread_.reset(new ChromeThread());
+  main_thread_.reset(new ChromeThread(ChromeThread::UI));
   DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
 }
 
 CFUrlRequestUnittestRunner::~CFUrlRequestUnittestRunner() {
   fake_chrome_.Shutdown();
 }
 
 DWORD WINAPI NavigateIE(void* param) {
   return 0;
   win_util::ScopedCOMInitializer com;
@@ skipping 220 matching lines @@
   DialogWatchdog watchdog;
   // See url_request_unittest.cc for these credentials.
   SupplyProxyCredentials credentials("user", "secret");
   watchdog.AddObserver(&credentials);
   testing::InitGoogleTest(&argc, argv);
   FilterDisabledTests();
   CFUrlRequestUnittestRunner test_suite(argc, argv);
   test_suite.RunMainUIThread();
   return 0;
 }