Revert of Revert of Add WebSocketDispatcherHostTest.InvalidScheme

Revert of Revert of Add WebSocketDispatcherHostTest.InvalidScheme (patchset #1 id:1 of https://codereview.chromium.org/1007263002/)

Reason for revert:
The breakage still persists https://crbug.com/467471 after the original CL was reverted.

Original issue's description:
> Revert of Add WebSocketDispatcherHostTest.InvalidScheme (patchset #3 id:40001 of https://codereview.chromium.org/1000883004/)
>
> Reason for revert:
> Speculatively revert for https://crbug.com/467471
>
> Original issue's description:
> > Add WebSocketDispatcherHostTest.InvalidScheme
> >
> > This is a regression test for
> > https://codereview.chromium.org/998173003/.
> >
> > BUG=466335
> >
> > Committed: https://crrev.com/6a8de59ae3ecd7b04bee2ddec89eb7075fbd1871
> > Cr-Commit-Position: refs/heads/master@{#320262}
>
> TBR=ricea@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=466335
>
> Committed: https://crrev.com/725e3aed98c2b8a22c17bfef078b9c7a20709e49
> Cr-Commit-Position: refs/heads/master@{#320704}

TBR=ricea@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=466335
Committed: https://crrev.com/3022a392dd9af3ffd8a55e67c688e80f904dfc37
Cr-Commit-Position: refs/heads/master@{#320717}

[hiroshige, 2015-03-16 12:57:42]

Created Revert of Revert of Add WebSocketDispatcherHostTest.InvalidScheme

[commit-bot: I haz the power, 2015-03-16 12:57:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1013663002/1

[commit-bot: I haz the power, 2015-03-16 12:58:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-16 12:58:56]

Patchset 1 (id:??) landed as
https://crrev.com/3022a392dd9af3ffd8a55e67c688e80f904dfc37
Cr-Commit-Position: refs/heads/master@{#320717}