Roll src/third_party/pdfium/ 40c223e4e..d1ffda2ac (1 commit)

https://pdfium.googlesource.com/pdfium.git/+log/40c223e4ed41..d1ffda2acaee

$ git log 40c223e4e..d1ffda2ac --date=short --no-merges --format='%ad %ae %s'
2018-03-15 thestig Cleanup CStretchEngine.

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: I7d16e2a8ed63b5fcb7295d8bcb35b68abe672218
Reviewed-on: https://chromium-review.googlesource.com/964388
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@{#543442}

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': '40c223e4ed41e991f81281ca08b3085e218c52dc',
+  'pdfium_revision': 'd1ffda2acaee90a7b8a6dd36e0605dce826058e9',
   # 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.