Set InstallDate in the control panel to the current date on updates.

This allows users and admins to see when Chrome last updated (rather
than when it was originally installed) by looking in the Programs and
Features control panel. This seems to be the general behavior of other
apps.

BUG=807242
R=georgesak@chromium.org

Change-Id: I361efba2c48a88e7b9175ecd4c24a750fa3b8562
Reviewed-on: https://chromium-review.googlesource.com/c/1326007Reviewed-by: Georges Khalil <georgesak@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606486}

chrome/installer/setup/install_worker.cc

@@ -577,12 +577,9 @@ void AddUninstallShortcutWorkItems(const InstallerState& installer_state,
                                          true);
     // TODO(wfh): Ensure that this value is preserved in the 64-bit hive when
     // 64-bit installs place the uninstall information into the 64-bit registry.
-    install_list->AddSetRegValueWorkItem(reg_root,
-                                         uninstall_reg,
-                                         KEY_WOW64_32KEY,
-                                         L"InstallDate",
-                                         InstallUtil::GetCurrentDate(),
-                                         false);
+    install_list->AddSetRegValueWorkItem(reg_root, uninstall_reg,
+                                         KEY_WOW64_32KEY, L"InstallDate",
+                                         InstallUtil::GetCurrentDate(), true);
 
     const std::vector<uint32_t>& version_components = new_version.components();
     if (version_components.size() == 4) {