add SkAnimTimer, SPACE = pause/resume, ESP = stop

add SkAnimTimer, SPACE = pause/resume, ESP = stop

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/76113a9b7716748c70ea0ecf7aacbabe4cce5009

[reed1, 2015-02-02 19:52:47]

reed@google.com changed reviewers:
+ bsalomon@google.com

[reed1, 2015-02-02 20:39:15]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-02-02 20:39:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/894083003/1

[commit-bot: I haz the power, 2015-02-02 20:39:42]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-02-03 02:39 UTC

[bsalomon, 2015-02-02 20:54:25]

lgtm

https://codereview.chromium.org/894083003/diff/1/gm/SkAnimTimer.h
File gm/SkAnimTimer.h (right):

https://codereview.chromium.org/894083003/diff/1/gm/SkAnimTimer.h#newcode129
gm/SkAnimTimer.h:129: } break;
minor, thought we put the break inside:

    fCurrTime = now;
    break;
}

[commit-bot: I haz the power, 2015-02-02 20:55:06]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/76113a9b7716748c70ea0ecf7aacbabe4cce5009