add a verbose flag to skdiff that shows the progress and status of
each comparison

BUG=
R=bungeman@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/302443012

git-svn-id: http://skia.googlecode.com/svn/trunk@14923 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed