Revert of Enabling two tests that were disabled in app_shell_browsertests.

Revert of Enabling two tests that were disabled in app_shell_browsertests. (patchset #1 id:1 of https://codereview.chromium.org/623193002/)

Reason for revert:
The RenderProcessHost may not be destroyed because the message to destroy it may be queued in the message loop after the test pass message.

Original issue's description:
> Enabling two tests that were disabled in app_shell_browsertests.
>
> We can enable those tests now that crbug.com/419020 is fixed.
>
> BUG=352293
>
> Committed: https://crrev.com/9b10e4b077ee7106ab57d4728c5199a03638701a
> Cr-Commit-Position: refs/heads/master@{#298062}

TBR=fsamuel@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=352293
Committed: https://crrev.com/9939e951c13993fedba520815a1f7a5222c3f0d7
Cr-Commit-Position: refs/heads/master@{#298086}

[lfg, 2014-10-03 20:15:57]

Created Revert of Enabling two tests that were disabled in
app_shell_browsertests.

[commit-bot: I haz the power, 2014-10-03 20:16:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/630453002/1

[commit-bot: I haz the power, 2014-10-03 20:17:22]

Committed patchset #1 (id:1) as 2c9ca65682e6210520ad1504f8ebcbffd3510da4

[commit-bot: I haz the power, 2014-10-03 20:18:05]

Patchset 1 (id:??) landed as
https://crrev.com/9939e951c13993fedba520815a1f7a5222c3f0d7
Cr-Commit-Position: refs/heads/master@{#298086}