Fix flake in chrome_frame_net_tests due to improper use of IE configurator.

chrome_frame/test/net/fake_external_tab.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_frame/test/net/fake_external_tab.h"
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <exdisp.h>
 #include <Winsock2.h>
@@ skipping 500 matching lines @@
 
 void CFUrlRequestUnittestRunner::StartChromeFrameInHostBrowser() {
   if (!launch_browser_)
     return;
 
   base::win::ScopedCOMInitializer com;
   chrome_frame_test::CloseAllIEWindows();
 
   // Tweak IE settings to make it amenable to testing before launching it.
   ie_configurator_.reset(chrome_frame_test::CreateConfigurator());
-  if (ie_configurator_.get() != NULL)
+  if (ie_configurator_.get() != NULL) {
+    ie_configurator_->Initialize();
     ie_configurator_->ApplySettings();
+  }
 
   test_http_server_.reset(new test_server::SimpleWebServer(kTestServerPort));
   test_http_server_->AddResponse(&chrome_frame_html_);
   std::wstring url(base::StringPrintf(L"http://localhost:%i/chrome_frame",
                                       kTestServerPort).c_str());
 
   // Launch IE.  This launches IE correctly on Vista too.
   base::win::ScopedHandle ie_process(chrome_frame_test::LaunchIE(url));
   EXPECT_TRUE(ie_process.IsValid());
 
@@ skipping 364 matching lines @@
   // content::InitializeSandboxInfo(&sandbox_info);
   FakeMainDelegate delegate;
   content::ContentMain(
       reinterpret_cast<HINSTANCE>(GetModuleHandle(NULL)),
       &sandbox_info,
       &delegate);
 
   // Note:  In debug builds, we ExitProcess during PostDestroyThreads.
   return g_test_suite->test_result();
 }