Auto-rebaseline for r173372

http://src.chromium.org/viewvc/blink?view=revision&revision=173372

BUG=369486
TBR=fs@opera.com

Review URL: https://codereview.chromium.org/261853013

git-svn-id: svn://svn.chromium.org/blink/trunk@173436 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173344

http://src.chromium.org/viewvc/blink?view=revision&revision=173344

BUG=333430
TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/267133006

git-svn-id: svn://svn.chromium.org/blink/trunk@173437 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r173364

http://src.chromium.org/viewvc/blink?view=revision&revision=173364

TBR=esprehn@chromium.org

Review URL: https://codereview.chromium.org/267183005

git-svn-id: svn://svn.chromium.org/blink/trunk@173438 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark css3/compositing/background-blend-mode-crossfade-image-gradient.html as NeedsRebaseline

NOTRY=true
TBR=enne
BUG=251960

Review URL: https://codereview.chromium.org/263833024

git-svn-id: svn://svn.chromium.org/blink/trunk@173439 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Add a picture runtime flag

BUG=368830

Review URL: https://codereview.chromium.org/265833002

git-svn-id: svn://svn.chromium.org/blink/trunk@173440 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Add PhysicalTestSuites to allow adding command line flags for a dir.

This allows us to enable force-compositing-mode on a single directory
so that we can parallelize the work of enabling it, and break the
change to turn it on into smaller bitesize pieces of review and
rebaseline.

R=dpranke@chromium.org, enne
BUG=361729

Review URL: https://codereview.chromium.org/267083002

git-svn-id: svn://svn.chromium.org/blink/trunk@173441 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Always attach overflow controls to the right parent

Overflow controls like scrollbars and scroll corners can either be
parented by root transform layer (which optionally might exist) or the
overflow controls host layer (if the root transform layer does not).

Previously, overflow controls were parented to the first control parent
that they were attached to, and if the root transform layer got created,
they wouldn't be reparented to it.  This leads to raciness between
adding scrollbars and adding the root transform layer.

To fix this, always reparent these controls if the controlsParent has
changed.

BUG=361729

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=173263

Review URL: https://codereview.chromium.org/266003004

git-svn-id: svn://svn.chromium.org/blink/trunk@173442 bbb929c8-8fbe-4397-9dbb-9b2b20218538