Fixed FL9_3 shaders that use glPointSize without GL_POINTS mode This change fixes rendering on FL9_3 with shaders that reference glPointSize and are not used with GL_POINTS rendering mode. A TDR occurs on some hardware because of missing vertex buffers specified by the vertex layout. Change-Id: Ie49b75f7177c32c7f021a0409d15c27b18140c4b Reviewed-on: https://chromium-review.googlesource.com/299719 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Cooper Partin <coopp@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>