Revert of Introduce the Blink NotificationService, move permission checks there

third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h

Index: third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
diff --git a/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h b/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
index 2f815b3b6f3f671e3be3cebce74d6f6c6483a5b3..08cd6767c7509d084e97c0b281abce7ecba07923 100644
--- a/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
+++ b/third_party/WebKit/public/platform/modules/notifications/WebNotificationManager.h
@@ -14,6 +14,12 @@
 #include <stdint.h>
 
 namespace blink {
+
+namespace mojom {
+namespace blink {
+enum class PermissionStatus;
+}
+}
 
 class WebNotificationDelegate;
 class WebSecurityOrigin;
@@ -56,6 +62,9 @@
     // Indicates that the delegate object is being destroyed, and must no longer
     // be used by the embedder to dispatch events.
     virtual void notifyDelegateDestroyed(WebNotificationDelegate*) = 0;
+
+    // Synchronously checks the permission level for the given origin.
+    virtual mojom::blink::PermissionStatus checkPermission(const WebSecurityOrigin&) = 0;
 };
 
 } // namespace blink