Roll src/third_party/pdfium/ 175f01bb0..682118834 (1 commit)

https://pdfium.googlesource.com/pdfium.git/+log/175f01bb081b..682118834b3c

$ git log 175f01bb0..682118834 --date=short --no-merges --format='%ad %ae %s'
2017-12-16 thestig Fix null-dereference in CPDF_ShadingPattern::Load().

Created with:
  roll-dep src/third_party/pdfiumBUG=795490


The AutoRoll server is located here: https://pdfium-roll.skia.org

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: I6ddeaa08056edde34d2469221124f90d704dec0f
Reviewed-on: https://chromium-review.googlesource.com/831116
Reviewed-by: <pdfium-deps-roller@chromium.org>
Commit-Queue: <pdfium-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524600}

DEPS

@@ -98,7 +98,7 @@ 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': '175f01bb081b262fac00e8d0d331cb9661193554',
+  'pdfium_revision': '682118834b3cf2b5510ee676088fdd8f11869e84',
   # 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.