Fix style propagation to continuations

The original loop in updateStyleOfAnonymousBlockContinuations() is
incorrect: it will propagate styles of the inline to sibling anonymous
blocks not belonging to the continuation chain of this inline.

Break the loop when we meet the end of the continuation chain.

BUG=506669
TEST=fast/repaint/outline-continuations.html

Review URL: https://codereview.chromium.org/1215023010

git-svn-id: svn://svn.chromium.org/blink/trunk@198543 bbb929c8-8fbe-4397-9dbb-9b2b20218538
5 files changed