Roll src/third_party/pdfium/ bbeb10dae..b1d7872fa (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/bbeb10daef8b..b1d7872faacb

$ git log bbeb10dae..b1d7872fa --date=short --no-merges --format='%ad %ae %s'
2018-02-02 thestig Teach the presubmit check to look for checkdeps in other places.
2018-02-02 thestig Remove third_party/build/build_config.h.

Created with:
  roll-dep src/third_party/pdfium


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: Idb5eca6dc20419a3aec04d1777e87421e178f95f
Reviewed-on: https://chromium-review.googlesource.com/900313
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#534227}

DEPS

@@ -103,7 +103,7 @@ 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': 'bbeb10daef8b485024aa68126ff267c81dd4c474',
+  'pdfium_revision': 'b1d7872faacbd37c03eacc1e86214904db8f658f',
   # 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.