Remove parameters of setShouldDoFullPaintInvalidation()

- The only usage of MarkingBehavior has been removed in
  https://codereview.chromium.org/622193002/.
- Remove bool parameter to only allow setting the flag to true from
  outside.

Review URL: https://codereview.chromium.org/622223002

git-svn-id: svn://svn.chromium.org/blink/trunk@183359 bbb929c8-8fbe-4397-9dbb-9b2b20218538