Makes the response to CheckNotificationPermission asynchronous.

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 c77720b4b071fafee049c9179b99816cb3bf53c9..f3ead2611ed2f7ecc19b77318057ee6b8d3f56ea 100644
--- a/chrome/browser/notifications/desktop_notification_service.h
+++ b/chrome/browser/notifications/desktop_notification_service.h
@@ -34,6 +34,10 @@ class WebContents;
 struct ShowDesktopNotificationHostMsgParams;
 }
 
+namespace extensions {
+class Extension;
+}
+
 namespace gfx {
 class Image;
 }
@@ -151,8 +155,8 @@ class DesktopNotificationService : public BrowserContextKeyedService,
 
   // Checks to see if a given origin has permission to create desktop
   // notifications.
-  WebKit::WebNotificationPresenter::Permission
-      HasPermission(const GURL& origin);
+  WebKit::WebNotificationPresenter::Permission HasPermission(const GURL& origin,
+                                                             int process_id);
 
   // Returns true if the notifier with |notifier_id| is allowed to send
   // notifications.
@@ -194,6 +198,8 @@ class DesktopNotificationService : public BrowserContextKeyedService,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  bool ExtensionApplies(const extensions::Extension* extension);
+
   // The profile which owns this object.
   Profile* profile_;