Drop the contextless ExceptionState constructor.

BUG=270033

Review URL: https://codereview.chromium.org/188623002

git-svn-id: svn://svn.chromium.org/blink/trunk@168729 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Fix reveal in summary view after r168584

BUG=350332

Review URL: https://codereview.chromium.org/190493002

git-svn-id: svn://svn.chromium.org/blink/trunk@168730 bbb929c8-8fbe-4397-9dbb-9b2b20218538