first-run: Pull IsBrowserAlreadyRunning() out of upgrade_util_win.h.

chrome/browser/first_run/upgrade_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/first_run/upgrade_util.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/base_paths.h"
@@ skipping 41 matching lines @@
       ::CloseHandle(handle);
       if (exit_code == installer::RENAME_SUCCESSFUL)
         return true;
     }
   }
   return false;
 }
 
 }  // namespace
 
-
 namespace upgrade_util {
 
 bool RelaunchChromeBrowser(const CommandLine& command_line) {
   scoped_ptr<base::Environment> env(base::Environment::Create());
   env->UnSetVar(chrome::kChromeVersionEnvVar);
   return base::LaunchApp(
       command_line.command_line_string(), false, false, NULL);
 }
 
 bool IsUpdatePendingRestart() {
   FilePath new_chrome_exe;
   if (!GetNewerChromeFile(&new_chrome_exe))
     return false;
   return file_util::PathExists(new_chrome_exe);
 }
 
-bool IsBrowserAlreadyRunning() {
-  static HANDLE handle = NULL;
-  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);
-}
-
 bool SwapNewChromeExeIfPresent() {
   FilePath new_chrome_exe;
   if (!GetNewerChromeFile(&new_chrome_exe))
     return false;
   if (!file_util::PathExists(new_chrome_exe))
     return false;
   FilePath cur_chrome_exe;
   if (!PathService::Get(base::FILE_EXE, &cur_chrome_exe))
     return false;
 
@@ skipping 27 matching lines @@
     return false;
   // At this point the chrome.exe has been swapped with the new one.
   if (!RelaunchChromeBrowser(command_line)) {
     // The re-launch fails. Feel free to panic now.
     NOTREACHED();
   }
   return true;
 }
 
 }  // namespace upgrade_util