Enable accessibility to be compiled in as part of the Android port.
Enable accessibility to be compiled in as part of the Android port.

BUG=242953

Review URL: https://chromiumcodereview.appspot.com/16232023

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@152463 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