Index: chrome/browser/guest_view/extension_options/extension_options_guest.cc |
diff --git a/chrome/browser/guest_view/extension_options/extension_options_guest.cc b/chrome/browser/guest_view/extension_options/extension_options_guest.cc |
index f41cc801c19d4462eba57ce06dce40c797642f0e..2f64b0e583fd470c6634983d4ddc5182042cd973 100644 |
--- a/chrome/browser/guest_view/extension_options/extension_options_guest.cc |
+++ b/chrome/browser/guest_view/extension_options/extension_options_guest.cc |
@@ -64,7 +64,9 @@ void ExtensionOptionsGuest::CreateWebContents( |
return; |
} |
- if (extension_id != embedder_extension_id) { |
+ if (extensions::Extension::IdIsValid(embedder_extension_id) && |
+ extension_id != embedder_extension_id) { |
+ // Extensions cannot embed other extensions' options pages. |
callback.Run(NULL); |
return; |
} |