Remove <iostream> where possible.

chrome/installer/util/move_tree_work_item_unittest.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 <windows.h>
 
 #include <fstream>
-#include <iostream>
 
 #include "base/base_paths.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "chrome/installer/util/work_item.h"
 #include "chrome/installer/util/move_tree_work_item.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 366 matching lines @@
   EXPECT_TRUE(file_util::ContentsEqual(exe_full_path, to_file));
 
   // test rollback()
   work_item->Rollback();
 
   EXPECT_TRUE(file_util::PathExists(from_dir));
   EXPECT_TRUE(file_util::ContentsEqual(exe_full_path, from_file));
   EXPECT_TRUE(file_util::PathExists(to_dir));
   EXPECT_EQ(0, ReadTextFile(to_file.value()).compare(text_content_1));
 }