ServiceWorker: Remove the obsolete "parsed" state [2/3]

ServiceWorker: Remove the obsolete "parsed" state [2/3]

Spec: https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#service-worker-state

[1] Blink: https://codereview.chromium.org/678253002/
[2] Chromium: THIS PATCH
[3] Blink: https://codereview.chromium.org/683733002/

BUG=424081
TEST=content_unittests --gtest_filter=ServiceWorker*

Committed: https://crrev.com/efd4d520915131c73756eed7bd046b6356cfb731
Cr-Commit-Position: refs/heads/master@{#301612}

[dominicc (has gone to gerrit), 2014-10-28 02:03:55]

Informal LGTM

[nhiroki, 2014-10-28 08:44:28]

The CQ bit was checked by nhiroki@chromium.org

[commit-bot: I haz the power, 2014-10-28 08:45:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/685503004/1

[commit-bot: I haz the power, 2014-10-28 12:03:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-28 12:04:00]

Patchset 1 (id:??) landed as
https://crrev.com/efd4d520915131c73756eed7bd046b6356cfb731
Cr-Commit-Position: refs/heads/master@{#301612}