Remove parts of //cc we aren't using

Remove parts of //cc we aren't using

The only thing we're using //cc for in Mojo is as part of the
implementation of the surfaces service. Thus we only need the renderers
(in //cc/output), the resource counting system (part of //cc/resources)
and common code to support that. We don't need cc's animation, layers,
trees, input filtering or other systems.

R=tonyg@chromium.org

Committed: https://chromium.googlesource.com/external/mojo/+/41b80ab41b441c71495e80541868a3b71d8aa59c

[jamesr, 2015-04-03 22:40:59]

jamesr@chromium.org changed reviewers:
+ tonyg@chromium.org

[jamesr, 2015-04-03 22:41:04]

Tony - picking you at random.  I dunno if there's any useful way to review this
but the diffstat is nice.

[tonyg, 2015-04-03 22:54:27]

This big of a red patch deserves a medal :)

rubber stamp lgtm

[jamesr, 2015-04-03 23:10:55]

Committed patchset #1 (id:1) manually as
41b80ab41b441c71495e80541868a3b71d8aa59c (presubmit successful).

[jamesr, 2015-04-03 23:11:27]

755 files changed, 169 insertions(+), 174413 deletions(-)

nice :)