const int loops
This drives me nuts, and prevents `while (loops --> 0)`. BUG=skia: Review URL: https://codereview.chromium.org/1379923005
This looks a lot closer to what Chromium's profiling is showing. BUG=chromium:470553 Review URL: https://codereview.chromium.org/1063723002
BUG=chromium:470553 Review URL: https://codereview.chromium.org/1061633002