Check the ServiceWorker Version ID in EmbeddedWorkerInstance::Start() in release builds.

Check the ServiceWorker Version ID in EmbeddedWorkerInstance::Start() in release builds.

We are receiving some crash reports which may be caused by the invalid ServiceWorker version ID.
To eliminate the possibility of this, this cl adds ServiceWorker version ID CKECK() in EmbeddedWorkerInstance::Start.

BUG=532420
Committed: https://crrev.com/8d91293cf2691903ae725a448a8170fc821fa9e3
Cr-Commit-Position: refs/heads/master@{#354470}

[horo, 2015-10-16 02:31:25]

horo@chromium.org changed reviewers:
+ nhiroki@chromium.org

[horo, 2015-10-16 02:31:26]

nhiroki@
Could you please review this?

[nhiroki, 2015-10-16 06:32:20]

lgtm

[horo, 2015-10-16 06:38:42]

The CQ bit was checked by horo@chromium.org

[commit-bot: I haz the power, 2015-10-16 06:39:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1413493003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1413493003/1

[commit-bot: I haz the power, 2015-10-16 08:04:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-16 08:04:56]

Patchset 1 (id:??) landed as
https://crrev.com/8d91293cf2691903ae725a448a8170fc821fa9e3
Cr-Commit-Position: refs/heads/master@{#354470}