Remove changes remaining counter from about:sync

Remove changes remaining counter from about:sync

The label "changes remaining" is not quite correct.  It's actually set
to either zero or one, depending on whether or not the current sync
cycle should result in more downloads.

If there is an issue with infinite download looping, we should be able
to detect and debug it based on the protocol logs, among other things.
The protocol logs indicate when a GetUpdates response had a non-zero
"changes remaining" value.

BUG=349301
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266594

[rlarocque, 2014-04-24 20:08:59]

Please review.

[tim (not reviewing), 2014-04-25 16:28:18]

LGTM

[rlarocque, 2014-04-25 17:28:28]

The CQ bit was checked by rlarocque@chromium.org

[commit-bot: I haz the power, 2014-04-25 22:14:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rlarocque@chromium.org/256413007/1

[commit-bot: I haz the power, 2014-04-25 23:19:56]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-04-25 23:19:57]

Try jobs failed on following builders:
  tryserver.chromium on win_chromium_rel

[rlarocque, 2014-04-25 23:39:23]

The CQ bit was checked by rlarocque@chromium.org

[commit-bot: I haz the power, 2014-04-25 23:40:48]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rlarocque@chromium.org/256413007/1

[commit-bot: I haz the power, 2014-04-26 03:53:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-04-26 03:53:54]

Try jobs failed on following builders:
  tryserver.chromium on win_chromium_rel

[rlarocque, 2014-04-28 17:24:47]

The CQ bit was checked by rlarocque@chromium.org

[commit-bot: I haz the power, 2014-04-28 17:25:03]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rlarocque@chromium.org/256413007/1

[commit-bot: I haz the power, 2014-04-28 17:25:44]

Change committed as 266594