[webcrypto] exportKey() now returns dictionary when format='jwk' (CL 1 of 2).

[webcrypto] exportKey() now returns dictionary when format='jwk' (CL 1 of 2).

Previously it would return an array buffer of the JSON.

This corresponds with the recent spec update:
https://dvcs.w3.org/hg/webcrypto-api/rev/f61017a76a5d

BUG=373917, 245025
R=rsleevi@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=277884

[eroman, 2014-06-16 23:39:13]

The corresponding blink CL is:
https://codereview.chromium.org/338993002/

[Ryan Sleevi, 2014-06-17 19:15:20]

https://codereview.chromium.org/334333004/diff/20001/content/child/webcrypto/...
File content/child/webcrypto/webcrypto_impl.cc (right):

https://codereview.chromium.org/334333004/diff/20001/content/child/webcrypto/...
content/child/webcrypto/webcrypto_impl.cc:475: state->buffer.size());
This feels like there's a dependent CL here (perhaps already landed) that
explores this. Can you link me?

[Ryan Sleevi, 2014-06-17 19:27:16]

lgtm

[eroman, 2014-06-17 19:28:08]

The CQ bit was checked by eroman@chromium.org

[commit-bot: I haz the power, 2014-06-17 19:30:07]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/eroman@chromium.org/334333004/20001

[commit-bot: I haz the power, 2014-06-17 22:15:53]

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

[commit-bot: I haz the power, 2014-06-17 22:15:54]

Try jobs failed on following builders:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)

[eroman, 2014-06-17 22:25:26]

Committed patchset #2 manually as r277884 (presubmit successful).