Revert of Try #3 to fix the android layout tests crash in run-webkit-tests.

Revert of Try #3 to fix the android layout tests crash in run-webkit-tests. (patchset #2 id:20001 of https://codereview.chromium.org/591563002/)

Reason for revert:
Reverting, since this broke mac bots:

UnicodeEncodeError raised: 'ascii' codec can't encode characters in position 11332-11333: ordinal not in range(128)

Original issue's description:
> Try #3 to fix the android layout tests crash in run-webkit-tests.
> 
> This patch forcibly reencodes to ASCII at a different layer, matching
> where we're actually seeing the stack trace. This seems like an
> overly broad solution, but may at least get us past the crash so I can
> see where things might really be failing.
> 
> This change also backs out the change in r182282, since it didn't seem
> to help anything.
> 
> TBR=peter@chromium.org
> BUG=386343
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182358

TBR=peter@chromium.org,dpranke@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=386343
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182387

[caseq, 2014-09-22 06:32:01]

Created Revert of Try #3 to fix the android layout tests crash in
run-webkit-tests.

[commit-bot: I haz the power, 2014-09-22 06:32:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/590983002/1

[commit-bot: I haz the power, 2014-09-22 06:32:39]

Committed patchset #1 (id:1) as 182387

[Dirk Pranke, 2014-09-22 16:34:21]

On 2014/09/22 06:32:39, I haz the power (commit-bot) wrote:
> Committed patchset #1 (id:1) as 182387

lgtm.