Add mock config to tools and run through gms and benchs without crashing.

Change-Id: I7e2474129ef2b15899ad2baeb8d18f39d05da98c
Reviewed-on: https://skia-review.googlesource.com/21820
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
15 files changed