Migrate upgrade notifications to observer

chrome/browser/ui/browser_commands.cc

Index: chrome/browser/ui/browser_commands.cc
diff --git a/chrome/browser/ui/browser_commands.cc b/chrome/browser/ui/browser_commands.cc
index 54582710f9eeabe66591d594472edeb84fde23ee..72c580bf0f1c43afed2f7e02ed7166001ee22756 100644
--- a/chrome/browser/ui/browser_commands.cc
+++ b/chrome/browser/ui/browser_commands.cc
@@ -14,7 +14,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browsing_data/browsing_data_helper.h"
 #include "chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h"
-#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/dom_distiller/tab_utils.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ -75,7 +74,6 @@
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
-#include "content/public/browser/notification_service.h"
 #include "content/public/browser/page_navigator.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
@@ -1139,15 +1137,9 @@ void ShowAvatarMenu(Browser* browser) {
 
 void OpenUpdateChromeDialog(Browser* browser) {
   if (UpgradeDetector::GetInstance()->is_outdated_install()) {
-    content::NotificationService::current()->Notify(
-        chrome::NOTIFICATION_OUTDATED_INSTALL,
-        content::NotificationService::AllSources(),
-        content::NotificationService::NoDetails());
+    UpgradeDetector::GetInstance()->NotifyOutdatedInstall();
   } else if (UpgradeDetector::GetInstance()->is_outdated_install_no_au()) {
-    content::NotificationService::current()->Notify(
-        chrome::NOTIFICATION_OUTDATED_INSTALL_NO_AU,
-        content::NotificationService::AllSources(),
-        content::NotificationService::NoDetails());
+    UpgradeDetector::GetInstance()->NotifyOutdatedInstallNoAutoUpdate();
   } else {
     base::RecordAction(UserMetricsAction("UpdateChrome"));
     browser->window()->ShowUpdateChromeDialog();