[VR, Permission] Use appopriate type parameters for WebCallbacks (1/3)

public/platform/modules/permissions/WebPermissionClient.h

Index: public/platform/modules/permissions/WebPermissionClient.h
diff --git a/public/platform/modules/permissions/WebPermissionClient.h b/public/platform/modules/permissions/WebPermissionClient.h
index 9d43136bf106d87748c596a53f9b6fac1b7e111a..a86a045ab78afc6646e71e8e6636a9306c8c7033 100644
--- a/public/platform/modules/permissions/WebPermissionClient.h
+++ b/public/platform/modules/permissions/WebPermissionClient.h
@@ -13,7 +13,15 @@
 
 namespace blink {
 
-using WebPermissionCallback = WebCallbacks<WebPermissionStatus*, void>;
+class WebPermissionCallback : public WebCallbacks<WebPermissionStatus, void> {
+public:
+    virtual void onSuccess(WebPermissionStatus) = 0;
+    void onSuccess(WebPermissionStatus* r)
+    {
+        onSuccess(*r);
+        delete r;
+    }
+};
 using WebPermissionsCallback = WebCallbacks<WebPassOwnPtr<WebVector<WebPermissionStatus>>, void>;
 
 class WebPermissionObserver;