Skipping mouseenter/over/out/leave on deleted nodes.

Both IE and FF skip firing of mouse transition events at deleted nodes,
with only IE doing it in a perfect manner by maintining the pairing of
entry/exit events. A crack in our code had been causing firing of these
events at a node after the node got deleted. This CL fixes the bug by
making chromium behave similar to FF. The perfect solution seems
non-trivial.

BUG=515921

Review URL: https://codereview.chromium.org/1288483003

git-svn-id: svn://svn.chromium.org/blink/trunk@200656 bbb929c8-8fbe-4397-9dbb-9b2b20218538
8 files changed
tree: cf002713954e79cf3e3314f23b54fcaf65ae2907
  1. third_party/