Moved a bunch of win-specific files to the new win folder in chrome/browser

chrome/browser/browser_util_win.cc

-// Copyright (c) 2011 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/browser/browser_util_win.h"
-
-#include <windows.h>
-
-#include <algorithm>
-#include <string>
-
-#include "base/base_paths.h"
-#include "base/files/file_path.h"
-#include "base/path_service.h"
-
-namespace browser_util {
-
-bool IsBrowserAlreadyRunning() {
-  static HANDLE handle = NULL;
-  base::FilePath exe_path;
-  PathService::Get(base::FILE_EXE, &exe_path);
-  std::wstring exe = exe_path.value();
-  std::replace(exe.begin(), exe.end(), '\\', '!');
-  std::transform(exe.begin(), exe.end(), exe.begin(), tolower);
-  exe = L"Global\\" + exe;
-  if (handle != NULL)
-    CloseHandle(handle);
-  handle = CreateEvent(NULL, TRUE, TRUE, exe.c_str());
-  int error = GetLastError();
-  return (error == ERROR_ALREADY_EXISTS || error == ERROR_ACCESS_DENIED);
-}
-
-}  // namespace browser_util