BUILD.gn: Disable pool alloc on all translator dependents when fuzzing
BUILD.gn: Disable pool alloc on all translator dependents when fuzzing

It contains defines that need to be consistent between the header and
the implementation.

BUG=angleproject:1522
BUG=chromium:647807

Change-Id: Ica144c455b7366bd9939a07b171edffe5af8bf35
Reviewed-on: https://chromium-review.googlesource.com/386945
Commit-Queue: Corentin Wallez <470c533e86f4f848c98c7e11fffc2d043494a401@chromium.org>
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

ecoal95/angle,ecoal95/angle,ppy/angle,ppy/angle,MSOpenTech/angle,ecoal95/angle,MSOpenTech/angle,MSOpenTech/angle,ppy/angle,ppy/angle,MSOpenTech/angle,ecoal95/angle,ecoal95/angle