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

chrome_frame/test/chrome_frame_test_utils.h

 // 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.
 
 #ifndef CHROME_FRAME_TEST_CHROME_FRAME_TEST_UTILS_H_
 #define CHROME_FRAME_TEST_CHROME_FRAME_TEST_UTILS_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <string>
 #include <exdisp.h>
 #include <exdispid.h>
 #include <mshtml.h>
 #include <shlguid.h>
 #include <shobjidl.h>
 #include <windows.h>
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/scoped_comptr_win.h"
-#include "base/scoped_variant_win.h"
 
 #include "chrome_frame/test_utils.h"
 #include "chrome_frame/test/simulate_input.h"
 #include "chrome_frame/utils.h"
 
 // Include without path to make GYP build see it.
 #include "chrome_tab.h"  // NOLINT
 
 namespace chrome_frame_test {
 
@@ skipping 393 matching lines @@
 // Same as above except that it writes the tree for the given window.
 void DumpAccessibilityTreeForWindow(HWND hwnd);
 
 // Starts the Chrome crash service which enables us to gather crash dumps
 // during test runs.
 base::ProcessHandle StartCrashService();
 
 }  // namespace chrome_frame_test
 
 #endif  // CHROME_FRAME_TEST_CHROME_FRAME_TEST_UTILS_H_