NewError no longer returns a MaybeObject.

NewError no longer returns a MaybeObject.

We no longer expect NewError to return an empty handle to signal termination
exception, since TryCall simply requests a new terminate exception interrupt.

BUG=chromium:403509
LOG=N

Committed: https://crrev.com/c5d55550d8295f28e9a3e436111c9154969173f8
Cr-Commit-Position: refs/heads/master@{#26811}

[Yang, 2015-02-23 15:12:40]

yangguo@chromium.org changed reviewers:
+ jkummerow@chromium.org

[Jakob Kummerow, 2015-02-23 15:29:44]

lgtm

[Yang, 2015-02-24 08:38:15]

The CQ bit was checked by yangguo@chromium.org

[commit-bot: I haz the power, 2015-02-24 08:39:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/952483002/1

[commit-bot: I haz the power, 2015-02-24 08:39:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/952483002/1

[commit-bot: I haz the power, 2015-02-24 09:01:34]

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

[commit-bot: I haz the power, 2015-02-24 09:01:35]

Failed to apply the patch.

[commit-bot: I haz the power, 2015-02-24 09:01:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-24 09:01:52]

Patchset 1 (id:??) landed as
https://crrev.com/c5d55550d8295f28e9a3e436111c9154969173f8
Cr-Commit-Position: refs/heads/master@{#26811}