Display "Restart to update" dialog to Chrome OS users.

chrome/browser/lifetime/application_lifetime.cc

Index: chrome/browser/lifetime/application_lifetime.cc
diff --git a/chrome/browser/lifetime/application_lifetime.cc b/chrome/browser/lifetime/application_lifetime.cc
index 31d58fb369ec90137d80baa7c41277f85beb7a2d..11017dd59a979777cdcf9a343b95812f11009ccb 100644
--- a/chrome/browser/lifetime/application_lifetime.cc
+++ b/chrome/browser/lifetime/application_lifetime.cc
@@ -132,7 +132,7 @@ void ShutdownIfNoBrowsers() {
   ProfileManager::ShutdownSessionServices();
 #endif
 
-  chrome::NotifyAndTerminate(true);
+  chrome::NotifyAndTerminate(/*fast_path=*/true,/*always_reboot=*/false);

[James Cook, 2016/11/30 23:01:41]

ditto, and throughout

[Greg K, 2016/12/01 19:44:43]

Done.

   chrome::OnAppExiting();
 }
 
@@ -181,7 +181,7 @@ void AttemptUserExit() {
   g_send_stop_request_to_session_manager = true;
   // On ChromeOS, always terminate the browser, regardless of the result of
   // AreAllBrowsersCloseable(). See crbug.com/123107.
-  chrome::NotifyAndTerminate(true);
+  chrome::NotifyAndTerminate(/*fast_path=*/true,/*always_reboot=*/false);
 #else
   // Reset the restart bit that might have been set in cancelled restart
   // request.
@@ -357,7 +357,7 @@ void NotifyAppTerminating() {
       content::NotificationService::NoDetails());
 }
 
-void NotifyAndTerminate(bool fast_path) {
+void NotifyAndTerminate(bool fast_path, bool always_reboot) {
 #if defined(OS_CHROMEOS)
   static bool notified = false;
   // Return if a shutdown request has already been sent.
@@ -375,16 +375,18 @@ void NotifyAndTerminate(bool fast_path) {
 
   if (base::SysInfo::IsRunningOnChromeOS()) {
     // If we're on a ChromeOS device, reboot if an update has been applied,
-    // or else signal the session manager to log out.
-    chromeos::UpdateEngineClient* update_engine_client
-        = chromeos::DBusThreadManager::Get()->GetUpdateEngineClient();
+    //     // or else signal the session manager to log out.

[James Cook, 2016/11/30 23:01:41]

fix formatting please

[Greg K, 2016/12/01 19:44:43]

Done.

+    chromeos::UpdateEngineClient* update_engine_client =
+        chromeos::DBusThreadManager::Get()->GetUpdateEngineClient();
     if (update_engine_client->GetLastStatus().status ==
-        chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT) {
+            chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT ||
+        always_reboot) {
       update_engine_client->RebootAfterUpdate();
     } else if (g_send_stop_request_to_session_manager) {
       // Don't ask SessionManager to stop session if the shutdown request comes
       // from session manager.
-      chromeos::DBusThreadManager::Get()->GetSessionManagerClient()
+      chromeos::DBusThreadManager::Get()
+          ->GetSessionManagerClient()
           ->StopSession();
     }
   } else {