Destroy all selectors in CSSSelectorList::deleteSelectors

We were not destroying the last selector. This caused us to leak CSS rare data.

BUG=241892

Review URL: https://codereview.chromium.org/105003008

git-svn-id: svn://svn.chromium.org/blink/trunk@163863 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Add an extensible JSDoc validator in Java, accompanied by a "@this" annotation checker.

The validator is currently disabled in compile_frontend.py

R=aandrey, eustas, vsevik
BUG=328064
NOTRY=true

Review URL: https://codereview.chromium.org/103633004

git-svn-id: svn://svn.chromium.org/blink/trunk@163864 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Add sigbjornf to bindings, dom WATCHLISTS.

R=
BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/115193002

git-svn-id: svn://svn.chromium.org/blink/trunk@163865 bbb929c8-8fbe-4397-9dbb-9b2b20218538