Remove logging.h from cc files that don't use it.

chrome/installer/util/work_item_list_unittest.cc

 // Copyright (c) 2006-2008 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 <windows.h>
 
 #include "base/base_paths.h"
 #include "base/file_util.h"
-#include "base/logging.h"
 #include "base/path_service.h"
 #include "base/registry.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "chrome/installer/util/work_item.h"
 #include "chrome/installer/util/work_item_list.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
   wchar_t test_root[] = L"ListList";
@@ skipping 127 matching lines @@
   // The last one should not be there.
   EXPECT_FALSE(key.Open(HKEY_CURRENT_USER, not_created_key.c_str(),
                KEY_READ));
 
   work_item_list->Rollback();
 
   // Verify everything is rolled back.
   EXPECT_FALSE(key.Open(HKEY_CURRENT_USER, key_to_create.c_str(), KEY_READ));
   EXPECT_FALSE(file_util::PathExists(top_dir_to_create));
 }