Make image decoding traces off by default

R=hclam
CC=reveman
BUG=405463

Review URL: https://codereview.chromium.org/488983002

git-svn-id: svn://svn.chromium.org/blink/trunk@180816 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Push outline style to block continuations when they are added

This is a follow-up of
https://src.chromium.org/viewvc/blink?view=rev&revision=179756
that pushes outline style to block continuations when outline style
changes.

This change pushes outline style to block continuations when
the continuations are added.

https://codereview.chromium.org/479893003/ will remove
RenderObject::outlineStyle().

BUG=404890

Review URL: https://codereview.chromium.org/481283003

git-svn-id: svn://svn.chromium.org/blink/trunk@180817 bbb929c8-8fbe-4397-9dbb-9b2b20218538