Use AtomicString API directly

Instead of going through string(), use
the AtomicString API directly.

Review URL: https://codereview.chromium.org/560273004

git-svn-id: svn://svn.chromium.org/blink/trunk@181868 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Fix buttons after the latest refactor.

Just some styling and import boogs, but they meant buttons
didn't render at all.

NOTRY=true
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/564023002

git-svn-id: svn://svn.chromium.org/blink/trunk@181869 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Oilpan: fix build after r181867.

TBR=oilpan-reviews,adamk@chromium.org
BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/570453003

git-svn-id: svn://svn.chromium.org/blink/trunk@181870 bbb929c8-8fbe-4397-9dbb-9b2b20218538
bindings: Pass IDL dictionary references instead of pointers

It will be less error-prone to pass references instead of pointers.
Customers don't need to add ASSERT().

This is a follow-up CL of https://codereview.chromium.org/547383004/,
and no changes in behavior.

BUG=321462

Review URL: https://codereview.chromium.org/558283004

git-svn-id: svn://svn.chromium.org/blink/trunk@181871 bbb929c8-8fbe-4397-9dbb-9b2b20218538