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// 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.
#ifndef CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_
#define CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_
#pragma once
#include "build/build_config.h"
class CommandLine;
#if defined(OS_WIN)
class ProcessSingleton;
#endif
namespace upgrade_util {
void SetNewCommandLine(CommandLine* new_command_line);
// Launches a new instance of the browser if the current instance in persistent
// mode an upgrade is detected.
void RelaunchChromeBrowserWithNewCommandLineIfNeeded();
// Launches chrome again simulating a 'user' launch. If chrome could not be
// launched the return is false.
bool RelaunchChromeBrowser(const CommandLine& command_line);
// Windows:
// Checks if chrome_new.exe is present in the current instance's install.
// Linux:
// Checks if the last modified time of chrome is newer than that of the current
// running instance.
bool IsUpdatePendingRestart();
#if defined(OS_WIN)
// Check if current chrome.exe is already running as a browser process by
// trying to create a Global event with name same as full path of chrome.exe.
// This method caches the handle to this event so on subsequent calls also
// it can first close the handle and check for any other process holding the
// handle to the event.
bool IsBrowserAlreadyRunning();
// If the new_chrome.exe exists (placed by the installer then is swapped
// to chrome.exe and the old chrome is renamed to old_chrome.exe. If there
// is no new_chrome.exe or the swap fails the return is false;
bool SwapNewChromeExeIfPresent();
// Combines the two methods, RelaunchChromeBrowser and
// SwapNewChromeExeIfPresent, to perform the rename and relaunch of
// the browser. Note that relaunch does NOT exit the existing browser process.
// If this is called before message loop is executed, simply exit the main
// function. If browser is already running, you will need to exit it.
bool DoUpgradeTasks(const CommandLine& command_line);
#endif // OS_WIN
#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
void SaveLastModifiedTimeOfExe();
double GetLastModifiedTimeOfExe();
#endif
} // namespace upgrade_util
#endif // CHROME_BROWSER_FIRST_RUN_UPGRADE_UTIL_H_
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