Fix memory leak in cmap parsing

Fix memory leak in cmap parsing

found by libfuzzer

Committed: https://pdfium.googlesource.com/pdfium/+/ddf6293e4db200cda56b19eb99b1c03953d5baca

[kcwu, 2016-09-24 13:17:33]

kcwu@chromium.org changed reviewers:
+ thestig@chromium.org

[kcwu, 2016-09-24 13:17:33]

PTAL

[Lei Zhang, 2016-09-26 18:39:49]

Is there a bug number for this one?

[Lei Zhang, 2016-09-26 18:40:44]

lgtm

[kcwu, 2016-09-26 18:45:39]

On 2016/09/26 18:39:49, Lei Zhang wrote:
> Is there a bug number for this one?

No. I found this issue after I finished my fuzzer and have a test run.
Should I create bugs for such scenario?

[Lei Zhang, 2016-09-26 18:47:36]

On 2016/09/26 18:45:39, kcwu wrote:
> On 2016/09/26 18:39:49, Lei Zhang wrote:
> > Is there a bug number for this one?
> 
> No. I found this issue after I finished my fuzzer and have a test run.
> Should I create bugs for such scenario?

Not a big deal either way. Up to you.

[kcwu, 2016-09-26 18:48:54]

The CQ bit was checked by kcwu@chromium.org

[commit-bot: I haz the power, 2016-09-26 18:48:56]

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, 2016-09-26 19:21:07]

Description was changed from

==========
Fix memory leak in cmap parsing

found by libfuzzer
==========

to

==========
Fix memory leak in cmap parsing

found by libfuzzer

Committed:
https://pdfium.googlesource.com/pdfium/+/ddf6293e4db200cda56b19eb99b1c03953d5...
==========

[commit-bot: I haz the power, 2016-09-26 19:21:08]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/ddf6293e4db200cda56b19eb99b1c03953d5...