Cleanup: Remove unneeded headers from base/ (part 1)

chrome_frame/test/ui_test.cc

 // Copyright (c) 2010 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 <mshtmcid.h>
 #include <string>
 
+#include "base/scoped_variant_win.h"
 #include "chrome/common/url_constants.h"
 #include "chrome_frame/test/chrome_frame_test_utils.h"
 #include "chrome_frame/test/mock_ie_event_sink_actions.h"
 #include "chrome_frame/test/mock_ie_event_sink_test.h"
 
 using testing::_;
 using testing::InSequence;
 using testing::StrCaseEq;
 using testing::StrEq;
 
@@ skipping 513 matching lines @@
                               simulate_input::RIGHT),
           SendExtendedKeysEnter(&loop_, 500, VK_DOWN, 2,
                                 simulate_input::NONE)));
 
   EXPECT_CALL(ie_mock_, OnLoad(IN_IE, StrEq(page2)))
       .WillOnce(CloseBrowserMock(&ie_mock_));
 
   LaunchIEAndNavigate(page1);
 }
 
-}  // namespace chrome_frame_test
+}  // namespace chrome_frame_test