Add window.crypto.subtle behind a runtime feature flag ("Crypto")

Add window.crypto.subtle behind a runtime feature flag ("Crypto")

BUG=245025
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=152288

[abarth-chromium, 2013-06-11 23:17:12]

LGTM

I could ask you for a test, but we can wait until you add the first API to
crypto.subtle.  :)

[eroman, 2013-06-11 23:58:19]

Sounds good. I will introduce tests in my next CL once I start wiring things up

[commit-bot: I haz the power, 2013-06-12 06:04:25]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/eroman@chromium.org/15897025/7001

[commit-bot: I haz the power, 2013-06-12 06:24:11]

Retried try job too often on linux_layout_rel for step(s) webkit_lint,
webkit_tests, webkit_unit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_layo...

[commit-bot: I haz the power, 2013-06-12 06:54:23]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/eroman@chromium.org/15897025/7001

[commit-bot: I haz the power, 2013-06-12 06:58:31]

Sorry for I got bad news for ya.
Compile failed with a clobber build on linux_layout_rel.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_layo...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-06-12 16:32:22]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/eroman@chromium.org/15897025/7001

[commit-bot: I haz the power, 2013-06-12 16:57:57]

Change committed as 152288