Callback flow to register Chrome and update shortcuts after OS upgrade to Windows 8

chrome/installer/setup/install.cc

 // Copyright (c) 2012 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/installer/setup/install.h"
 
 #include <shlobj.h>
 #include <time.h>
 #include <winuser.h>
 
@@ skipping 534 matching lines @@
 
     installer_state.RemoveOldVersionDirectories(
         new_version,
         existing_version.get(),
         install_temp_path);
   }
 
   return result;
 }
 
+InstallStatus OnOsUpgrade(const InstallationState& original_state,

[grt (UTC plus 2), 2012/08/21 20:32:55]

since this does work specifically for the browser, I suggest putting Chrome in
the function name somewhere so that it's clear that it isn't mean to be called
for Chrome Frame, the binaries, or the app host.

[huangs, 2012/08/21 22:00:43]

Renamed to ChromeBrowserOnOsUpgrade() (to match
AddChromeBrowserOsUpgradeWorkItems()).

+                          const InstallerState& installer_state,
+                          const CommandLine& cmd_line) {
+  const Product* chrome_install =
+      installer_state.FindProduct(BrowserDistribution::CHROME_BROWSER);
+  DCHECK(chrome_install);
+
+  const FilePath& setup_exe = cmd_line.GetProgram();
+  base::win::Version win_version = base::win::GetVersion();
+
+  // Upon upgrading to Windows 8, we need to fix Chrome shortcuts and register
+  // Chrome, so that Metro Chrome would work if Chrome is the default browser.
+  if (win_version >= base::win::VERSION_WIN8) {
+    // Trigger error on next OS upgrade, so we can review if this is needed.
+    DCHECK(win_version == base::win::VERSION_WIN8);
+
+    VLOG(1) << "Updating and registering shortcut for Windows 8.";
+    uint32 shortcut_options = ShellUtil::SHORTCUT_DUAL_MODE;
+    CreateOrUpdateDesktopAndQuickLaunchShortcuts(
+        installer_state, *chrome_install, shortcut_options);
+    CreateOrUpdateStartMenuAndTaskbarShortcuts(
+        installer_state, setup_exe, *chrome_install, shortcut_options);
+    RegisterChromeOnMachine(installer_state, *chrome_install, false);
+  }
+
+  // Insert new update tasks on OS upgrade here.
+
+  return installer::ON_OS_UPGRADE_SUCCESSFUL;
+}
+
 }  // namespace installer