Roll src/third_party/pdfium/ da587fab5..0fdeeb817 (1 commit).

https://pdfium.googlesource.com/pdfium.git/+log/da587fab5760..0fdeeb817556

$ git log da587fab5..0fdeeb817 --date=short --no-merges --format='%ad %ae %s'
2016-12-19 tsepez Relax the EncryptMetadata check.

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls

TBR=dsinclair@chromium.org

Review-Url: https://codereview.chromium.org/2592453002
Cr-Commit-Position: refs/heads/master@{#439523}

DEPS

@@ -64,7 +64,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.
-  'pdfium_revision': 'da587fab57602e5e10c058e6e632df513fba0c93',
+  'pdfium_revision': '0fdeeb8175560ce6bbd8bbc14120cc75ea3a2d67',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling openmax_dl
   # and whatever else without interference from each other.