Revert of Move sqlite_channel_id_store from chrome/browser/net to net/extras.

Revert of Move sqlite_channel_id_store from chrome/browser/net to net/extras. (patchset #26 of https://codereview.chromium.org/381073002/)

Reason for revert:
Closed the tree on failing net_unittests:

http://build.chromium.org/p/chromium.linux/buildstatus?builder=Linux%20Tests%20%28dbg%29%281%29&number=32912

Original issue's description:
> Move sqlite_channel_id_store from chrome/browser/net to net/extras.
> Application of special storage policy is split out into chrome/browser/net/quota_policy_channel_id_store. 
> 
> TEST=net_unittests --gtest_filter=SQLiteChannelIDStoreTest*
> TEST=unit_tests --gtest_filter=QuotaPolicyChannelIDStore*
> 
> BUG=397545
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=289996

TBR=mef@chromium.org
NOTREECHECKS=true
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=290038

[miu, 2014-08-15 22:51:59]

Created Revert of Move sqlite_channel_id_store from chrome/browser/net to
net/extras.

[miu, 2014-08-15 22:53:59]

The CQ bit was checked by miu@chromium.org

[commit-bot: I haz the power, 2014-08-15 22:56:37]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miu@chromium.org/477253002/1

[commit-bot: I haz the power, 2014-08-15 23:02:35]

Committed patchset #1 (1) as 290038