Linux compile failures to do gyp defines.

This reverts commit 8bbeabc1.

Change-Id: Icb31dd817414b3a9ab36e88cedab9c725af26b6b
Reviewed-on: https://chromium-review.googlesource.com/299173Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>