Group the different permission related methods in the content api.

chrome/browser/notifications/desktop_notification_service.h

Index: chrome/browser/notifications/desktop_notification_service.h
diff --git a/chrome/browser/notifications/desktop_notification_service.h b/chrome/browser/notifications/desktop_notification_service.h
index f337c9fbfd0323dfa5b89b1d2111d5bfbf0da076..5ed01da420e95b88108151c8131293cdac2110ad 100644
--- a/chrome/browser/notifications/desktop_notification_service.h
+++ b/chrome/browser/notifications/desktop_notification_service.h
@@ -89,7 +89,7 @@ class DesktopNotificationService : public PermissionContextBase
       const PermissionRequestID& request_id,
       const GURL& requesting_origin,
       bool user_gesture,
-      const NotificationPermissionCallback& callback);
+      const base::Callback<void(bool)>& result_callback);
 
   // Show a desktop notification. If |cancel_callback| is non-null, it's set to
   // a callback which can be used to cancel the notification.
@@ -121,12 +121,6 @@ class DesktopNotificationService : public PermissionContextBase
   // Called when the disabled_extension_id pref has been changed.
   void OnDisabledExtensionIdsChanged();
 
-  // Used as a callback once a permission has been decided to convert |allowed|
-  // to one of the blink::WebNotificationPermission values.
-  void OnNotificationPermissionRequested(
-      const base::Callback<void(blink::WebNotificationPermission)>& callback,
-      bool allowed);
-
   void FirePermissionLevelChangedEvent(
       const message_center::NotifierId& notifier_id,
       bool enabled);