Handle paths that do not report empty, but have no edges.

Handle paths that do not report empty, but have no edges.

patch from issue 999963005 at patchset 1 (http://crrev.com/999963005#ps1)

BUG=skia:3527
Committed: https://skia.googlesource.com/skia/+/c1b11f1db69bea8d64ebf656ae92ea9ec6dbb40f

[reed1, 2015-03-13 15:05:11]

reed@google.com changed reviewers:
+ caryclark@google.com

[reed1, 2015-03-13 15:05:12]

ptal

[reed1, 2015-03-13 15:13:18]

added canvas test

[reed1, 2015-03-13 15:13:24]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-03-13 15:13:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1008883002/20001

[commit-bot: I haz the power, 2015-03-13 15:13:37]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-03-13 21:13 UTC

[commit-bot: I haz the power, 2015-03-13 15:14:50]

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

[commit-bot: I haz the power, 2015-03-13 15:14:51]

Try jobs failed on following builders:
  Build-Ubuntu13.10-GCC4.8-x86_64-Release-Trybot on client.skia.compile
(JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu13.10-GC...)

[reed1, 2015-03-13 15:21:24]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-03-13 15:21:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1008883002/40001

[commit-bot: I haz the power, 2015-03-13 15:21:40]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-03-13 21:21 UTC

[commit-bot: I haz the power, 2015-03-13 15:22:53]

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

[commit-bot: I haz the power, 2015-03-13 15:22:54]

Try jobs failed on following builders:
  Build-Ubuntu13.10-GCC4.8-x86_64-Release-Trybot on client.skia.compile
(JOB_FAILED,
http://build.chromium.org/p/client.skia.compile/builders/Build-Ubuntu13.10-GC...)

[reed1, 2015-03-13 15:28:57]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-03-13 15:29:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1008883002/60001

[commit-bot: I haz the power, 2015-03-13 15:29:06]

Note for Reviewers:
The CQ is waiting for an approval.
If you believe that the CL is not ready yet, or if you would like to L-G-T-M
with comments then please uncheck the CQ checkbox.

Waiting for LGTM from valid reviewer(s) till 2015-03-13 21:29 UTC

[caryclark, 2015-03-13 15:48:06]

lgtm

[commit-bot: I haz the power, 2015-03-13 15:48:31]

Committed patchset #4 (id:60001) as
https://skia.googlesource.com/skia/+/c1b11f1db69bea8d64ebf656ae92ea9ec6dbb40f