Revert of Android: Start up GPU channel early

Revert of Android: Start up GPU channel early (patchset #1 id:1 of https://codereview.chromium.org/893393004/)

Reason for revert:
Speculative revert to see if this could be the cause of crbug.com/456835.

Original issue's description:
> Android: Start up GPU channel early
>
> This addresses a TODO and reverts
> https://codereview.chromium.org/777303004.
>
> With https://codereview.chromium.org/889083002
> the CrashDumpManager is now initialized earlier so
> things should be fine.
>
> BUG=439322
>
> Committed: https://crrev.com/b8be6ae0e26843eab92ac1527a752278fec65d99
> Cr-Commit-Position: refs/heads/master@{#315170}

TBR=cjhopman@chromium.org,sievers@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=439322
Committed: https://crrev.com/e131f31b6b7f5a3b92766cdbf7134686feeec676
Cr-Commit-Position: refs/heads/master@{#315305}

[caseq, 2015-02-09 15:41:01]

Created Revert of Android: Start up GPU channel early

[commit-bot: I haz the power, 2015-02-09 15:41:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/910433004/1

[commit-bot: I haz the power, 2015-02-09 15:42:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-09 15:43:13]

Patchset 1 (id:??) landed as
https://crrev.com/e131f31b6b7f5a3b92766cdbf7134686feeec676
Cr-Commit-Position: refs/heads/master@{#315305}