Remove Node.isSupported

Intent to Deprecate and Remove:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/MUEjC37jFNg/hf1AHFl-4jsJ

There were many old W3C tests for isSupported, which were all removed.
These indirectly tested DOMImplementation.hasFeature, but there are many
direct tests for that which should suffice.

BUG=334970

Review URL: https://codereview.chromium.org/133703014

git-svn-id: svn://svn.chromium.org/blink/trunk@165237 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Remove ui -> sdk module dependency in ConsoleMessage.js

R=aandrey, eustas, pfeldman

Review URL: https://codereview.chromium.org/137203004

git-svn-id: svn://svn.chromium.org/blink/trunk@165238 bbb929c8-8fbe-4397-9dbb-9b2b20218538
MediaStream API: Changing all ExtraData objects to be owned
Since we do not have any logic that shares ExtraData objects, nor do we
want to support that usage I have changed all RefCounted EDs to be
owned instead.

Review URL: https://codereview.chromium.org/139943007

git-svn-id: svn://svn.chromium.org/blink/trunk@165239 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Move platform detection from the "ui" into the "common" module

Platform detection is also used by non-ui pieces of the frontend

R=aandrey, eustas, vsevik

Review URL: https://codereview.chromium.org/137793014

git-svn-id: svn://svn.chromium.org/blink/trunk@165240 bbb929c8-8fbe-4397-9dbb-9b2b20218538