tools: add sync-and-gyp script

tools:  add sync-and-gyp script

NOTRY=true

Committed: https://skia.googlesource.com/skia/+/135b7ecaa81018aa497da6ef8a8493263df456ef

[hal.canary, 2015-03-27 02:10:35]

halcanary@google.com changed reviewers:
+ scroggo@google.com

[hal.canary, 2015-03-27 02:10:36]

ptal

[scroggo, 2015-03-27 12:35:03]

On 2015/03/27 02:10:36, Hal Canary wrote:
> ptal

I like it! Can you add a description of how to use it?

[hal.canary, 2015-03-27 13:41:12]

On 2015/03/27 12:35:03, scroggo wrote:
> Can you add a description of how to use it?

Done.

[scroggo, 2015-03-27 14:10:57]

On 2015/03/27 13:41:12, Hal Canary wrote:
> On 2015/03/27 12:35:03, scroggo wrote:
> > Can you add a description of how to use it?
> 
> Done.

LGTM

Thanks!

[hal.canary, 2015-03-27 14:33:33]

The CQ bit was checked by halcanary@google.com

[commit-bot: I haz the power, 2015-03-27 14:33:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1035003004/20001

[commit-bot: I haz the power, 2015-03-27 19:11:52]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/135b7ecaa81018aa497da6ef8a8493263df456ef