Use auto keyword in NotificationPlatformBridgeWin

Change-Id: Icc77d7f903bf29fb79fee5270e97098208ad154c
Reviewed-on: https://chromium-review.googlesource.com/1219970Reviewed-by: Peter Beverloo <peter@chromium.org>
Commit-Queue: Xi Cheng <chengx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590447}

chrome/browser/notifications/notification_platform_bridge_win.cc

@@ -258,8 +258,7 @@ class NotificationPlatformBridgeWinImpl
       std::vector<winui::Notifications::IToastNotification*> notifications;
       GetNotifications(profile_id, incognito, &notifications);
 
-      for (winui::Notifications::IToastNotification* notification :
-           notifications) {
+      for (auto* notification : notifications) {
         winui::Notifications::IToastNotification2* t2 = nullptr;
         HRESULT hr = notification->QueryInterface(&t2);
         if (FAILED(hr))
@@ -546,8 +545,7 @@ class NotificationPlatformBridgeWinImpl
     GetNotifications(profile_id, incognito, &notifications);
 
     auto displayed_notifications = std::make_unique<std::set<std::string>>();
-    for (winui::Notifications::IToastNotification* notification :
-         notifications) {
+    for (auto* notification : notifications) {
       NotificationLaunchId launch_id(GetNotificationLaunchId(notification));
       if (!launch_id.is_valid()) {
         LogGetDisplayedLaunchIdStatus(