Roll src/third_party/pdfium 3f9d4b7ad048..857ae9fe9cb9 (3 commits)

https://pdfium.googlesource.com/pdfium.git/+log/3f9d4b7ad048..857ae9fe9cb9


git log 3f9d4b7ad048..857ae9fe9cb9 --date=short --no-merges --format='%ad %ae %s'
2019-03-22 thestig@chromium.org Break off part of CXFA_LayoutPageMgr::PrepareLayout().
2019-03-22 thestig@chromium.org Break off more parts of CXFA_LayoutPageMgr::FinishPaginatedPageSets().
2019-03-22 thestig@chromium.org Remove PDFIUM_IMMEDIATE_CRASH().


Created with:
  gclient setdep -r src/third_party/pdfium@857ae9fe9cb9

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

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: I5a9693da0e622f094a934919f71c06eeb82d4aaf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1536169
Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#643502}
diff --git a/DEPS b/DEPS
index 6e5b009..03f733c 100644
--- a/DEPS
+++ b/DEPS
@@ -149,7 +149,7 @@
   # 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': '3f9d4b7ad04842b7e4ec346459e6b0bbd714e9a0',
+  'pdfium_revision': '857ae9fe9cb9c8e9c450395f4f11f99f99eb86c4',
   # 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.