Annotate the races on static strings created by StringImpl::createStatic as benign.

This has been reviewed at https://codereview.chromium.org/48573005/ already.

TBR=abarth@chromium.org
BUG=223955

Review URL: https://codereview.chromium.org/50963002

git-svn-id: svn://svn.chromium.org/blink/trunk@160920 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Implement ^ and ^^ combinator.

Spec bug:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=23467

BUG=309504
TEST=fast/dom/shadow/style-with-hat.html, fast/dom/shadow/style-with-cat.html

Review URL: https://codereview.chromium.org/31983002

git-svn-id: svn://svn.chromium.org/blink/trunk@160921 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Fix typo in WebSocket layout test close-before-open.html

BUG=none

Review URL: https://codereview.chromium.org/50493008

git-svn-id: svn://svn.chromium.org/blink/trunk@160922 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Rewrite of a test from r156199, not relying on the devtools' localStorage

Chromium r231565 introduced clearance of the devtools' localStorage each
time the inspector is opened, which broke the original test.

R=pfeldman, vsevik

Review URL: https://codereview.chromium.org/48113018

git-svn-id: svn://svn.chromium.org/blink/trunk@160923 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Search/Replace focus should not be stolen

R=pfeldman@chromium.org, pfeldman

Review URL: https://codereview.chromium.org/52183002

git-svn-id: svn://svn.chromium.org/blink/trunk@160924 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Revert 160800 Reland: Implement new Blink IDL attribute [SetReference]

TBR=kouhei@chromium.org
BUG=307341

Review URL: https://codereview.chromium.org/52313002

git-svn-id: svn://svn.chromium.org/blink/trunk@160925 bbb929c8-8fbe-4397-9dbb-9b2b20218538