Update the google analytics bundle to 1.6.0c.

Update the google analytics bundle to 1.6.0c.

1.6.0c provides the ability for clients to manually provide an app version when instantiating the analytics service.

BUG=469258
Committed: https://crrev.com/c20184d422ea77266cc95c9ae5ce1e15a671c0ee
Cr-Commit-Position: refs/heads/master@{#322074}

[Ben Kwa, 2015-03-24 18:24:14]

kenobi@chromium.org changed reviewers:
+ smckay@chromium.org

[Steve McKay, 2015-03-24 20:28:01]

Looks good. But we should investigate with future releases how we can eliminate
the user agent sniffing stuff from the bundle...it shouldn't be needed.

Tyler suggests compiling w/ --define=goog.userAgent.ASSUME_WEBKIT=true

[Steve McKay, 2015-03-24 20:28:09]

The CQ bit was checked by smckay@chromium.org

[Steve McKay, 2015-03-24 20:28:09]

lgtm

[commit-bot: I haz the power, 2015-03-24 20:28:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1036443004/1

[commit-bot: I haz the power, 2015-03-24 21:24:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-24 21:25:21]

Patchset 1 (id:??) landed as
https://crrev.com/c20184d422ea77266cc95c9ae5ce1e15a671c0ee
Cr-Commit-Position: refs/heads/master@{#322074}