Roll pdfium to ef619d0562b39f30943cfdc4985a0df233d00e42

Roll pdfium to ef619d0562b39f30943cfdc4985a0df233d00e42

ef619d0 Fix blank page issues caused by too strict check
90e29cb Fixed crash on NULL de-referencing
0d8b679 Fixing operator so that bCheckRight isn't always true
f4aceed Fixing format strings to remove 'z' size specifier
cf19caa Removing unnecessary casts from wchar_t
9ae02ac Zero initialize ch to avoid possible bug
418f6d0 Add Bruce to AUTHORS

BUG=427616, 433339, 433992
Committed: https://crrev.com/8e52a5febfcfd30c79db25e7e5bbd641f426956e
Cr-Commit-Position: refs/heads/master@{#305517}

[Lei Zhang, 2014-11-24 21:24:53]

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

[jam, 2014-11-24 22:07:29]

lgtm

[Lei Zhang, 2014-11-24 22:08:14]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-11-24 22:09:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/749353002/1

[commit-bot: I haz the power, 2014-11-24 23:29:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-24 23:29:53]

Patchset 1 (id:??) landed as
https://crrev.com/8e52a5febfcfd30c79db25e7e5bbd641f426956e
Cr-Commit-Position: refs/heads/master@{#305517}