[webkit-gtk] Patches for WebKitGTK 2.39.4

[Michael Catanzaro]

Hi all,

If you are building WebKitGTK 2.39.4 for GTK 3, you'll need to use the 
following two patches to avoid installing broken public headers:

https://github.com/WebKit/WebKit/commit/9fe47e98a7f3b542413f3793912b291599f05860.patch
https://github.com/WebKit/WebKit/commit/8f11ad0813c37f4bd8ee43ecac733892a57e2a03.patch

Thanks to Thomas Devoogdt for fixing these issues.

Michael