Revert of Replace Chrome IPC with Mojo IPC for querying BatteryStatus service

Revert of Replace Chrome IPC with Mojo IPC for querying BatteryStatus service (patchset #23 id:570001 of https://codereview.chromium.org/592153002/)

Reason for revert:
Broke battery-status LayoutTests: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=battery-status

Original issue's description:
> Replace Chrome IPC with Mojo IPC for querying BatteryStatus service
>
> This is based on patch set 26 from Darin's https://codereview.chromium.org/457933002/ .
>
> BUG=420623
>
> Committed: https://crrev.com/9e6d2387b6d9b28ab6defe7f5feb715a5abbc242
> Cr-Commit-Position: refs/heads/master@{#301380}

TBR=rockot@chromium.org,timvolodine@chromium.org,jam@chromium.org,viettrungluu@chromium.org,jln@chromium.org,tsepez@chromium.org,ppi@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=420623
Committed: https://crrev.com/86b6faceb71f9b67b2797fc4782cba4a04855d78
Cr-Commit-Position: refs/heads/master@{#301402}

[leviw_travelin_and_unemployed, 2014-10-27 18:50:42]

Created Revert of Replace Chrome IPC with Mojo IPC for querying BatteryStatus
service

[commit-bot: I haz the power, 2014-10-27 18:53:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/676953005/1

[commit-bot: I haz the power, 2014-10-27 18:56:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-27 18:57:33]

Patchset 1 (id:??) landed as
https://crrev.com/86b6faceb71f9b67b2797fc4782cba4a04855d78
Cr-Commit-Position: refs/heads/master@{#301402}