Update WATCHLISTS due core/platform removal.
Update WATCHLISTS due core/platform removal.

Also add myself to platform_graphics watchlist.

BUG=

Review URL: https://codereview.chromium.org/78353003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@163792 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs