The Debug and Release configurations are 32-bit only.  The Debug_Base and
Release_Base configurations should be used in these cases.

In the future we should not rely on defines being placed in these
configurations because if ANGLE is included in another project, they may
not have the same configuration names and the defines will not be added.
To combat this, always make sure that there are appropriate #ifdef's in
the headers and don't add defines that would result in poor performance if
they do not exist.

BUG=angle:772

Change-Id: I2b26ffb934f8b3d5e6e556a1e87c1c5ee209c430
Reviewed-on: https://chromium-review.googlesource.com/225051Tested-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>