Add constant for Sync OAuth2 scope

Add constant for Sync OAuth2 scope

This deprecates the use of clientlogin scope, and adds the new OAuth2
scope to a Java constant.

BUG=264503
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=217827

[nyquist, 2013-08-12 16:02:37]

pavely: PTAL

[pavely, 2013-08-12 17:28:42]

On 2013/08/12 16:02:37, nyquist wrote:
> pavely: PTAL

LGTM, but I'm not in OWNERS.

[commit-bot: I haz the power, 2013-08-15 08:34:47]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a lowly provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[nyquist, 2013-08-15 17:29:13]

rsimha: PTAL

[Raghu Simha, 2013-08-15 17:34:33]

Rubberstamp LGTM.

[commit-bot: I haz the power, 2013-08-15 17:44:54]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nyquist@chromium.org/22868002/4001

[commit-bot: I haz the power, 2013-08-15 18:52:34]

Retried try job too often on mac_rel for step(s) telemetry_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2013-08-15 19:09:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/nyquist@chromium.org/22868002/4001

[commit-bot: I haz the power, 2013-08-15 19:09:42]

Change committed as 217827