cc: Fix crash in TileTaskWorkerPoolPerfTests.

cc: Fix crash in TileTaskWorkerPoolPerfTests.

TileTaskWorkerPoolPerfTests did not set up a GPU rasterizer. That
resulted in a resource provider to be queried from a NULL rasterizer in
GPU tile task work pool.

This fix sets up a GPU rasterizer for TileTaskWorkerPoolPerfTests.

BUG=444264, 454500
Committed: https://crrev.com/f31153ac1c030b4ccf176709afe0db2447fd6c8b
Cr-Commit-Position: refs/heads/master@{#316835}

[USE eero AT chromium.org, 2015-02-18 15:17:40]

e.hakkinen@samsung.com changed reviewers:
+ hendrikw@chromium.org, vmiura@chromium.org, vmpstr@chromium.org

[USE eero AT chromium.org, 2015-02-18 15:18:30]

PTAL. This fixes crashes in cc_perftests.

[vmiura, 2015-02-18 15:39:44]

vmiura@chromium.org changed reviewers:
+ reveman@chromium.org

[vmiura, 2015-02-18 15:40:00]

On 2015/02/18 15:18:30, e_hakkinen wrote:
> PTAL. This fixes crashes in cc_perftests.

LGTM.  Thanks for fixing this.

[reveman, 2015-02-18 15:43:55]

lgtm

[USE eero AT chromium.org, 2015-02-18 15:45:02]

The CQ bit was checked by e.hakkinen@samsung.com

[commit-bot: I haz the power, 2015-02-18 15:45:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/920343003/1

[commit-bot: I haz the power, 2015-02-18 16:17:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-18 16:18:21]

Patchset 1 (id:??) landed as
https://crrev.com/f31153ac1c030b4ccf176709afe0db2447fd6c8b
Cr-Commit-Position: refs/heads/master@{#316835}