Using the non-GTest dEQP targets led to crashes when deferencing a
nullptr error logging method. Fix this by skipping platform init if
there is a nullptr logError function.
Bug: angleproject:2552
Change-Id: I161e35b49f7e9a7592cec968e3540a2e8b625f94
Reviewed-on: https://chromium-review.googlesource.com/1136663
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>
