views - fade out more cvc prompt elements during verification process

Views - fade out more cvc prompt elements during wallet card verification process

- animate in the "Verifying" overlay, in the end completely obscuring contents
- don't hide the instructions message
- footnote view is also faded out

BUG=none

Committed: https://crrev.com/c90b59db808926b62c1dcc42845af79fc5a82926
Cr-Commit-Position: refs/heads/master@{#322013}

[Evan Stade, 2015-03-23 23:41:40]

estade@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2015-03-24 13:25:07]

LGTM

[Evan Stade, 2015-03-24 15:27:53]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-03-24 15:28:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1021913004/60001

[commit-bot: I haz the power, 2015-03-24 16:41:55]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-03-24 16:42:45]

Patchset 4 (id:??) landed as
https://crrev.com/c90b59db808926b62c1dcc42845af79fc5a82926
Cr-Commit-Position: refs/heads/master@{#322013}