Group the different permission related methods in the content api.

chrome/browser/notifications/desktop_notification_service.cc

Index: chrome/browser/notifications/desktop_notification_service.cc
diff --git a/chrome/browser/notifications/desktop_notification_service.cc b/chrome/browser/notifications/desktop_notification_service.cc
index fad44eb4d08637db2d682900097157e443a90a9d..db09c2df39868039632790578f3d0686cff948e7 100644
--- a/chrome/browser/notifications/desktop_notification_service.cc
+++ b/chrome/browser/notifications/desktop_notification_service.cc
@@ -142,7 +142,7 @@ void DesktopNotificationService::RequestNotificationPermission(
     const PermissionRequestID& request_id,
     const GURL& requesting_origin,
     bool user_gesture,
-    const NotificationPermissionCallback& callback) {
+    const base::Callback<void(bool)>& result_callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
 #if defined(ENABLE_EXTENSIONS)
@@ -169,19 +169,16 @@ void DesktopNotificationService::RequestNotificationPermission(
           extensions::APIPermission::kNotifications,
           extension,
           web_contents->GetRenderViewHost())) {
-    callback.Run(blink::WebNotificationPermissionAllowed);
+    result_callback.Run(true);
     return;
   }
 #endif
 
-  RequestPermission(
-      web_contents,
-      request_id,
-      requesting_origin,
-      user_gesture,
-      base::Bind(&DesktopNotificationService::OnNotificationPermissionRequested,
-                 weak_factory_.GetWeakPtr(),
-                 callback));
+  RequestPermission(web_contents,
+                    request_id,
+                    requesting_origin,
+                    user_gesture,
+                    result_callback);
 }
 
 void DesktopNotificationService::ShowDesktopNotification(
@@ -357,15 +354,6 @@ void DesktopNotificationService::UpdateContentSetting(
   }
 }
 
-void DesktopNotificationService::OnNotificationPermissionRequested(
-    const NotificationPermissionCallback& callback, bool allowed) {
-  blink::WebNotificationPermission permission = allowed ?
-      blink::WebNotificationPermissionAllowed :
-      blink::WebNotificationPermissionDenied;
-
-  callback.Run(permission);
-}
-
 void DesktopNotificationService::FirePermissionLevelChangedEvent(
     const NotifierId& notifier_id, bool enabled) {
 #if defined(ENABLE_EXTENSIONS)