initialize firstDir

initialize firstDir


Good catch by Florin; the variable was indeed uninitialized in
the complex followed by concave case.

R=fmalita@google.com
BUG=skia:3953
Committed: https://skia.googlesource.com/skia/+/d83f4955a58cbb9dd523c89ad50e2374a549075e

[caryclark, 2015-06-17 15:19:20]

The CQ bit was checked by caryclark@google.com

[commit-bot: I haz the power, 2015-06-17 15:19:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1187273005/1

[commit-bot: I haz the power, 2015-06-17 15:19:32]

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 2015-06-17 21:19 UTC

[caryclark, 2015-06-17 15:19:49]

caryclark@google.com changed reviewers:
+ fmalita@chromium.org
- fmalita@google.com

[commit-bot: I haz the power, 2015-06-17 15:20:28]

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

[commit-bot: I haz the power, 2015-06-17 15:20:29]

Try jobs failed on following builders:
  skia_presubmit-Trybot on client.skia.fyi (JOB_FAILED,
http://build.chromium.org/p/client.skia.fyi/builders/skia_presubmit-Trybot/bu...)

[f(malita), 2015-06-17 15:29:23]

lgtm

[caryclark, 2015-06-17 15:40:26]

The CQ bit was checked by caryclark@google.com

[caryclark, 2015-06-17 15:40:27]

The patchset sent to the CQ was uploaded after l-g-t-m from fmalita@chromium.org
Link to the patchset: https://codereview.chromium.org/1187273005/#ps20001
(title: "rebase first next time")

[commit-bot: I haz the power, 2015-06-17 15:40:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1187273005/20001

[commit-bot: I haz the power, 2015-06-17 15:46:15]

Committed patchset #2 (id:20001) as
https://skia.googlesource.com/skia/+/d83f4955a58cbb9dd523c89ad50e2374a549075e