Revert of DevTools: allow storing devtools preferences on the browser side. [blink]

Revert of DevTools: allow storing devtools preferences on the browser side. [blink] (patchset #6 id:100001 of https://codereview.chromium.org/1066813003/)

Reason for revert:
This seems to have badly broken http/tests/inspector/service-workers/service-workers-redundant.html

See:
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Oilpan%20(dbg)/builds/535

BUG=472488
Original issue's description:
> DevTools: allow storing devtools preferences on the browser side. [blink]
> 
> BUG=376788
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=193715

TBR=dgozman@chromium.org,pfeldman@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=376788
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=193772

[mlamouri (slow - plz ping), 2015-04-15 09:58:25]

Created Revert of DevTools: allow storing devtools preferences on the browser
side. [blink]

[commit-bot: I haz the power, 2015-04-15 09:58:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1088093002/1

[commit-bot: I haz the power, 2015-04-15 09:59:26]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=193772

[pfeldman, 2015-04-15 10:03:07]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1090573002/ by pfeldman@chromium.org.

The reason for reverting is: You reverted it over a broken test failure. Make
sure you look at the flakiness dashboard prior to revering things:
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#master=Ch....

[pfeldman, 2015-04-15 10:04:36]

On 2015/04/15 10:03:07, pfeldman wrote:
> A revert of this CL (patchset #1 id:1) has been created in
> https://codereview.chromium.org/1090573002/ by mailto:pfeldman@chromium.org.
> 
> The reason for reverting is: You reverted it over a broken test failure. Make
> sure you look at the flakiness dashboard prior to revering things:
>
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#master=Ch....

Oh, spoke too soon, I can see it started failing recently. Looking into it.

[pfeldman, 2015-04-15 10:41:17]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1085253003/ by pfeldman@chromium.org.

The reason for reverting is: The test in question is broken, tracked as
crbug.com/472488..