Remove a variety of bloatedCharacters callers

These callers are all easy to remove. I could post separate CLs for each one,
but that doesn't seem worthwhile. I've left the tricky ones for separate CLs.

R=eseidel
BUG=254708
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/19107009

git-svn-id: svn://svn.chromium.org/blink/trunk@154160 bbb929c8-8fbe-4397-9dbb-9b2b20218538