Android: Start up GPU channel early

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}

[no sievers, 2015-02-07 00:23:54]

sievers@chromium.org changed reviewers:
+ cjhopman@chromium.org

[no sievers, 2015-02-07 00:23:59]

ptal

[cjhopman, 2015-02-07 00:58:01]

lgtm

[no sievers, 2015-02-07 01:01:18]

The CQ bit was checked by sievers@chromium.org

[commit-bot: I haz the power, 2015-02-07 01:02:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/893393004/1

[commit-bot: I haz the power, 2015-02-07 03:15:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-07 03:15:40]

Patchset 1 (id:??) landed as
https://crrev.com/b8be6ae0e26843eab92ac1527a752278fec65d99
Cr-Commit-Position: refs/heads/master@{#315170}

[caseq, 2015-02-09 15:41:00]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/910433004/ by caseq@chromium.org.

The reason for reverting is: Speculative revert to see if this could be the
cause of crbug.com/456835..