Add GL_DEPTH_COMPONENT_24 as a depth format for surfaces.
Add GL_DEPTH_COMPONENT_24 as a depth format for surfaces.

BUG=angleproject:2075

Change-Id: Ic5e061d4908c072f92f80f70fa6da27b1346cd83
Reviewed-on: https://chromium-review.googlesource.com/663944
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>

ppy/angle,ppy/angle,MSOpenTech/angle,ppy/angle,MSOpenTech/angle,MSOpenTech/angle,ppy/angle,MSOpenTech/angle