When critical updates have been installed and the user has been idle for quite some time, show a ...

chrome/installer/util/install_util.h

 // 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.
 //
 // This file declares utility functions for the installer. The original reason
 // for putting these functions in installer\util library is so that we can
 // separate out the critical logic and write unit tests for it.
 
-#ifndef CHROME_INSTALLER_UTIL_INSTALL_UTIL_H__
-#define CHROME_INSTALLER_UTIL_INSTALL_UTIL_H__
+#ifndef CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_
+#define CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_
 #pragma once
 
 #include <tchar.h>
 #include <windows.h>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/util_constants.h"
@@ skipping 17 matching lines @@
       BrowserDistribution::Type distribution_type);
 
   // Find the version of Chrome installed on the system by checking the
   // Google Update registry key. Returns the version or NULL if no version is
   // found.
   // system_install: if true, looks for version number under the HKLM root,
   //                 otherwise looks under the HKCU.
   static Version* GetChromeVersion(BrowserDistribution* dist,
                                    bool system_install);
 
+  // Find the last critical update (version) of Chrome. Returns the version or
+  // NULL if no such version is found. A critical update is a specially flagged
+  // version (by Google Update) that contains an important security fix.
+  static Version* GetCriticalUpdateVersion(BrowserDistribution* dist);
+
   // This function checks if the current OS is supported for Chromium.
   static bool IsOSSupported();
 
   // Adds work items to |install_list|, which should be a
   // NoRollbackWorkItemList, to set installer error information in the registry
   // for consumption by Google Update.  |state_key| must be the full path to an
   // app's ClientState key.  See InstallerState::WriteInstallerResult for more
   // details.
   static void AddInstallerResultItems(bool system_install,
                                       const std::wstring& state_key,
@@ skipping 101 matching lines @@
                                    CommandLine* command_line);
 
   // Returns a string in the form YYYYMMDD of the current date.
   static std::wstring GetCurrentDate();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(InstallUtil);
 };
 
 
-#endif  // CHROME_INSTALLER_UTIL_INSTALL_UTIL_H__
+#endif  // CHROME_INSTALLER_UTIL_INSTALL_UTIL_H_