Moving to HEAD of LVL master on morning of 4/16/18.
Made some updates to BUILD.gn to add use debug_utils files now
instead of debug_report.
Re-enable ANGLE Vulkan build.

Bug: angleproject:2482
Change-Id: Ic2ab2a1cd7ecdba3152d433efcdbf427864e7e2b
Reviewed-on: https://chromium-review.googlesource.com/1014258Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>