WebGL not functional on EGLFS platforms on ARM

Under eglfs environment, there is only one top level window. With this condition, it is still possible to have WebGL functional under most scenarios. However, current WebKit2 builds disable WebGL for eglfs. The attached patch-set has been verified to add back this functionality on TI platforms on Qt5.1.1.

Patch-set links:

1. WebGL functionality to WebKit2

https://github.com/prabindh/qt-configs/tree/master/webgl_5.1.1

2. Fix for infinite looping of window creation, due to expose event handler in wrong location, triggered by setting Qt window to full-screen in every create call.

https://github.com/prabindh/qt-configs/blob/master/qt5_1_1_Sep13/qeglfswindow.cpp.patch2