Removed simple tests steps from CanvasTest.

Removed simple tests steps from CanvasTest.

CanvasTest only checks if the state of the different canvas
implementations are consistent with the one of the default
implementation.

Because most of the draw calls are stateless and already tested in GMs
the test steps that exercices them are not useful.

BUG=skia:3054
Committed: https://skia.googlesource.com/skia/+/ec6e670669659e0db2ae76826da5c1d642a10ce1

[Rémi Piotaix, 2014-10-23 17:32:02]

piotaixr@chromium.org changed reviewers:
+ junov@chromium.org, reed@google.com

[Rémi Piotaix, 2014-10-23 17:32:14]

PTAL

[reed1, 2014-10-23 17:36:44]

lgtm

[Justin Novosad, 2014-10-23 17:41:07]

On 2014/10/23 17:36:44, reed1 wrote:
> lgtm

lgtm2

[Rémi Piotaix, 2014-10-23 17:49:06]

The CQ bit was checked by piotaixr@chromium.org

[commit-bot: I haz the power, 2014-10-23 17:50:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/672273002/1

[commit-bot: I haz the power, 2014-10-23 17:59:15]

Committed patchset #1 (id:1) as ec6e670669659e0db2ae76826da5c1d642a10ce1