[DevTools] Use Input.emulateTouchFromMouseEvent for screencast events.

BUG=384522

Review URL: https://codereview.chromium.org/419463005

git-svn-id: svn://svn.chromium.org/blink/trunk@179215 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove SVGFEMorphologyElement.setRadius(radiusX, radiusY)

Intent to Deprecate and Remove:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/cQWSsX1jHMQ/h-sAaqRqnbUJ

BUG=398791

Review URL: https://codereview.chromium.org/421823002

git-svn-id: svn://svn.chromium.org/blink/trunk@179216 bbb929c8-8fbe-4397-9dbb-9b2b20218538