if SK_DEBUG -> ifdef SK_DEBUG

Should unbreak Chrome canary bots.

BUG=skia:
R=mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/272623002

git-svn-id: http://skia.googlecode.com/svn/trunk@14616 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed