Start enabling platform_canvas_unittests on Linux

Start enabling platform_canvas_unittests on Linux

These unittests have been disabled for years, limiting our coverage;
by implementing a Cairo version of DrawNativeRect() we can turn on at
least a few of them.

R=fmalita@chromium.org
BUG=154358
Committed: https://crrev.com/8eae448d476210d6b89077ef27f8a0ee9dfcbef0
Cr-Commit-Position: refs/heads/master@{#418545}

[tomhudson, 2016-09-13 21:11:08]

The CQ bit was checked by tomhudson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-09-13 21:11:40]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[tomhudson, 2016-09-13 21:15:41]

The CQ bit was checked by tomhudson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-09-13 21:16:09]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-13 22:51:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-13 22:51:03]

Dry run: This issue passed the CQ dry run.

[tomhudson, 2016-09-14 12:33:26]

PTAL

[f(malita), 2016-09-14 13:39:43]

lgtm

[tomhudson, 2016-09-14 13:43:04]

The CQ bit was checked by tomhudson@google.com

[commit-bot: I haz the power, 2016-09-14 13:43:17]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-14 13:47:39]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-14 13:49:48]

Description was changed from

==========
Start enabling platform_canvas_unittests on Linux

These unittests have been disabled for years, limiting our coverage;
by implementing a Cairo version of DrawNativeRect() we can turn on at
least a few of them.

R=fmalita@chromium.org
BUG=154358
==========

to

==========
Start enabling platform_canvas_unittests on Linux

These unittests have been disabled for years, limiting our coverage;
by implementing a Cairo version of DrawNativeRect() we can turn on at
least a few of them.

R=fmalita@chromium.org
BUG=154358

Committed: https://crrev.com/8eae448d476210d6b89077ef27f8a0ee9dfcbef0
Cr-Commit-Position: refs/heads/master@{#418545}
==========

[commit-bot: I haz the power, 2016-09-14 13:49:49]

Patchset 2 (id:??) landed as
https://crrev.com/8eae448d476210d6b89077ef27f8a0ee9dfcbef0
Cr-Commit-Position: refs/heads/master@{#418545}