Pass NewScriptState to idbAnyToScriptValue() and idbKeyToScriptValue()

Pass NewScriptState to idbAnyToScriptValue() and idbKeyToScriptValue()

- This CL is one of incremental steps to remove DOMRequestState from IDB code base.

- The essence of this CL is to remove DOMRequestState from idbAnyToScriptValue() and idbKeyToScriptValue(). For that goal, this CL passes NewScriptState around in a bunch of places.

- This CL implements [CallWith=NewScriptState] for DOM attributes.

- This CL caches NewScriptState onto ExecutableWithDatabase objects, IndexPopulator and OpenDatabaseCallback.

BUG=357144
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=171447

[haraken, 2014-04-14 07:15:52]

PTAL

[dcarney, 2014-04-14 07:51:59]

lgtm

[haraken, 2014-04-14 07:52:26]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2014-04-14 07:52:31]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/haraken@chromium.org/236783002/1

[commit-bot: I haz the power, 2014-04-14 08:42:42]

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

[commit-bot: I haz the power, 2014-04-14 08:42:43]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[haraken, 2014-04-14 08:44:39]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2014-04-14 08:44:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/haraken@chromium.org/236783002/1

[commit-bot: I haz the power, 2014-04-14 09:15:52]

Change committed as 171447