[fiddle] Report GL driver info.

Bug: skia:
Change-Id: I5338d6abef062f7da420e8cddafa082bedcfff25
Reviewed-on: https://skia-review.googlesource.com/18310
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
6 files changed