shiny/driver/gldriver: treat pixels as real pixels

While I don't expect window size to be expressed in NewWindowOptions
as pixels, right now the window displayed on OS X is 1024x768 scaled
pixels, which doesn't really fit with shiny's use of pixels.

Change-Id: I30608fb3c608e17de40ff72feec1d4b74f53c769
Reviewed-on: https://go-review.googlesource.com/13916
Reviewed-by: Nigel Tao <nigeltao@golang.org>
1 file changed