tree 0735e84978ab91cfbf507573ac0726d9ea4cc50e
parent f0c30f55665eb3555ca438855d4995baed182e97
author halcanary <halcanary@google.com> 1468615287 -0700
committer Commit bot <commit-bot@chromium.org> 1468615288 -0700

SkPdf: smaller color serialization

SkPDFUtils now has a special function (SkPDFUtils::AppendColorComponent)
just for writing out (color/255) as a decimal with three digits of
precision.

SkPDFUnion now has a type to represent a color component.  It holds a
utint_8, but calls into AppendColorComponent to serialize.

Added a unit test that tests all possible input values.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2151863003

Review-Url: https://codereview.chromium.org/2151863003