Roll src/third_party/pdfium a216865467dd..c040c8f85051 (9 commits)

https://pdfium.googlesource.com/pdfium.git/+log/a216865467dd..c040c8f85051

git log a216865467dd..c040c8f85051 --date=short --first-parent --format='%ad %ae %s'
2020-01-22 thestig@chromium.org Clean up CPDF_TextPage.
2020-01-22 thestig@chromium.org Rename FPDF functions in cpdf_formfield.h.
2020-01-22 thestig@chromium.org Rename CPDF_TextPage's enum values to kFoo.
2020-01-22 thestig@chromium.org Git rid of FPDFText_Direction.
2020-01-22 thestig@chromium.org Rename enum class FPDFText_MarkedContent.
2020-01-22 thestig@chromium.org Rename FPDF_CHAR_INFO class to CPDF_TextPage::CharInfo.
2020-01-22 tsepez@chromium.org Tidy cfde_wordbreak_data.cpp
2020-01-22 thestig@chromium.org Run coverage.py with --no-component-view.
2020-01-22 tsepez@chromium.org Bounds check in GetWordBreakProperty()

Created with:
  gclient setdep -r src/third_party/pdfium@c040c8f85051

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/pdfium-autoroll
Please CC pdfium-deps-rolls@chromium.org on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Bug: chromium:1043510
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: Ife40755f9b64b19135628feae01f4884b5bb9830
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2015457Reviewed-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@{#734286}

DEPS

@@ -201,7 +201,7 @@ 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': 'a216865467ddf9430fe1207adcd71c2d5318e3bc',
+  'pdfium_revision': 'c040c8f850515cd82b3dbcefed870ccc843fdb54',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.