NeedsRebaseline after SK_IGNORE_PROPER_FRACTIONAL_SCALING removal.

These were previously NeedsManualRebaseline to prevent bot breakage.
Now that the Chromium-side change has landed, the rebaseline bot can go ahead.

TBR=schenney@chromium.org
BUG=391051

Review URL: https://codereview.chromium.org/678833003

git-svn-id: svn://svn.chromium.org/blink/trunk@184595 bbb929c8-8fbe-4397-9dbb-9b2b20218538