This avoids sandbox issues when calling SetPixelFormat on windows from
other processes while in a sandboxed process.

BUG=540829

Change-Id: I012168531d8c2e5b189671533cea9f57ec713538
Reviewed-on: https://chromium-review.googlesource.com/296340Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Tryjob-Request: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>