Added options to disable specific printers.

Added black list of printer.
Added option to enable/disable registration of new printers.

BUG=137129
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=158782

[Vitaly Buka (NO REVIEWS), 2012-09-25 09:24:10]

Please review.

[gene, 2012-09-25 17:52:05]

lgtm

[Vitaly Buka (NO REVIEWS), 2012-09-25 17:56:05]

Lei, may I as you review chrome/common/pref_names.* changes ?

[Lei Zhang, 2012-09-25 18:08:17]

lgtm

[commit-bot: I haz the power, 2012-09-26 05:12:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/vitalybuka@chromium.org/10966052/22003

[commit-bot: I haz the power, 2012-09-26 05:12:51]

Failed to apply patch for
chrome/service/cloud_print/connector_settings_unittest.cc:
While running patch -p1 --forward --force;
patching file chrome/service/cloud_print/connector_settings_unittest.cc
Hunk #3 FAILED at 75.
Hunk #4 succeeded at 92 (offset 2 lines).
Hunk #5 succeeded at 110 (offset 2 lines).
1 out of 5 hunks FAILED -- saving rejects to file
chrome/service/cloud_print/connector_settings_unittest.cc.rej

[commit-bot: I haz the power, 2012-09-26 06:13:36]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/vitalybuka@chromium.org/10966052/27005

[commit-bot: I haz the power, 2012-09-26 10:14:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/vitalybuka@chromium.org/10966052/27005

[commit-bot: I haz the power, 2012-09-26 11:17:21]

Change committed as 158782