[webcrypto] Change HMAC key generation length from bytes to bits.

[webcrypto] Change HMAC key generation length from bytes to bits.

This is the final CL that removes the ifdef once blink has rolled.

BUG=245025
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=256729

[Ryan Sleevi, 2014-03-10 23:48:47]

lgtm

[eroman, 2014-03-12 02:19:19]

The CQ bit was checked by eroman@chromium.org

[eroman, 2014-03-12 02:19:33]

The CQ bit was unchecked by eroman@chromium.org

[eroman, 2014-03-12 02:20:12]

The CQ bit was checked by eroman@chromium.org

[commit-bot: I haz the power, 2014-03-12 02:24:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/eroman@chromium.org/193393002/1

[commit-bot: I haz the power, 2014-03-12 10:06:45]

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

[commit-bot: I haz the power, 2014-03-12 10:06:45]

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

[eroman, 2014-03-12 23:06:41]

The CQ bit was checked by eroman@chromium.org

[commit-bot: I haz the power, 2014-03-12 23:08:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/eroman@chromium.org/193393002/1

[commit-bot: I haz the power, 2014-03-13 01:46:09]

Change committed as 256729