GuestView should Self destruct if the embedder doesn't have permission.

extensions/browser/guest_view/guest_view_base.cc

Index: extensions/browser/guest_view/guest_view_base.cc
diff --git a/extensions/browser/guest_view/guest_view_base.cc b/extensions/browser/guest_view/guest_view_base.cc
index 4a58dd57a1e8d8896a9bbf8c0b39f563ead52c03..696e9935d2e4065b9d8f4336df0eea7440c556f0 100644
--- a/extensions/browser/guest_view/guest_view_base.cc
+++ b/extensions/browser/guest_view/guest_view_base.cc
@@ -140,6 +140,9 @@ void GuestViewBase::Init(const std::string& embedder_extension_id,
                                             embedder_process_id),
       embedder_web_contents->GetLastCommittedURL());
   if (!availability.is_available()) {
+    // The derived class did not create a WebContents so this class serves no
+    // purpose. Let's self-destruct.
+    delete this;
     callback.Run(NULL);
     return;
   }