Add bench_record.

I got fed up trying to figure out how best to measure recording cost with bench_pictures, render_pictures, etc, so I wrote a new tool.

Features welcome.

BUG=
R=tomhudson@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/132573002

git-svn-id: http://skia.googlecode.com/svn/trunk@13037 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed