Make it possible to ignore CLs from certain authors when estimating capacity
Make it possible to ignore CLs from certain authors when estimating capacity

For example, for blink merge we'd like to ignore blink-deps-roller@chromium.org

BUG=431479

Review URL: https://codereview.chromium.org/952913002

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@294198 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build