Mark fast/html/imports/rel-import-to-style.html as flaky

BUG=370490
TBR=morrita

Review URL: https://codereview.chromium.org/263833022

git-svn-id: svn://svn.chromium.org/blink/trunk@173403 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove instance and shadow tree debugging

Remove instance and shadow tree debugging, since instance tree will be removed and for the shadow tree
we can use Inspector. Also note that this code (once enabled) started to fail to compile at some point.

BUG=313438
NOTRY=true

Review URL: https://codereview.chromium.org/262413002

git-svn-id: svn://svn.chromium.org/blink/trunk@173404 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Oilpan: trace pointers in HTMLMeterElement and get rid of RefPtrs.

R=zerny@chromium.org,haraken@chromium.org

Review URL: https://codereview.chromium.org/270103003

git-svn-id: svn://svn.chromium.org/blink/trunk@173405 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Don't assert if selectWordAroundCaret is called with no selection.

The header clearly says that false will be returned if the selection is
not possible. We should not ASSERT when something is an expected entry
especially when that entry is then checked and reacted upon.

BUG=None

Review URL: https://codereview.chromium.org/262403002

git-svn-id: svn://svn.chromium.org/blink/trunk@173406 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173348

http://src.chromium.org/viewvc/blink?view=revision&revision=173348

BUG=320139
TBR=dsinclair@chromium.org

Review URL: https://codereview.chromium.org/262093013

git-svn-id: svn://svn.chromium.org/blink/trunk@173407 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173293

http://src.chromium.org/viewvc/blink?view=revision&revision=173293

BUG=311164,363103
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/262333006

git-svn-id: svn://svn.chromium.org/blink/trunk@173408 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173294

http://src.chromium.org/viewvc/blink?view=revision&revision=173294

BUG=351658,318632
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/265793021

git-svn-id: svn://svn.chromium.org/blink/trunk@173409 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Don't call v8::Persistent<.>::SetWeak on an empty persistent.

Why? Calling SetWeak on an empty Persistent makes no sense, since by
definition the callback will never be called since there is no
object whose garbage collection could trigger the callback. So far,
this behaviour is useless bug bening. Note that here the callback would
clear the Persistent which was actually empty anyways.

Really why? In the process of fixing crbug.com/368095, we've come
across a case where SetWeak on an empty Persistent is actually harmful,
and we'd like to ASSERT against this (crrev.com/265823006). This code
currently breaks the fast/dom/node-filter-gc test, hence this fix.

R=jochen@chromium.org
BUG=368095,358858

Review URL: https://codereview.chromium.org/270453003

git-svn-id: svn://svn.chromium.org/blink/trunk@173410 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[New Multicolumn] Remove RenderRegionSet.

It only did one thing, and that one thing can be done directly by
RenderMultiColumnSet instead.

Review URL: https://codereview.chromium.org/267903003

git-svn-id: svn://svn.chromium.org/blink/trunk@173411 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173353

http://src.chromium.org/viewvc/blink?view=revision&revision=173353

BUG=356823
TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/268063009

git-svn-id: svn://svn.chromium.org/blink/trunk@173412 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173389

http://src.chromium.org/viewvc/blink?view=revision&revision=173389

BUG=359194
TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/267983005

git-svn-id: svn://svn.chromium.org/blink/trunk@173413 bbb929c8-8fbe-4397-9dbb-9b2b20218538