Roll src/third_party/pdfium fc407350ad45..bf198e71ef28 (3 commits)

https://pdfium.googlesource.com/pdfium.git/+log/fc407350ad45..bf198e71ef28

git log fc407350ad45..bf198e71ef28 --date=short --first-parent --format='%ad %ae %s'
2020-03-20 thestig@chromium.org Initialize CPDF_TextState members in the header.
2020-03-20 thestig@chromium.org Mark CPDF_Parser::SetLinearizedHeader() as ForTesting.
2020-03-20 tsepez@chromium.org Make CFXJSE_Value use fxv8 helpers for aggregate type access.

Created with:
  gclient setdep -r src/third_party/pdfium@bf198e71ef28

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: None
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: Ia6d23322f7c62e6ce80e964f1f4e87389348172f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2113310Reviewed-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@{#752199}

DEPS

@@ -195,7 +195,7 @@ 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': 'fc407350ad453a707c69bf42ece1e19ed1683f29',
+  'pdfium_revision': 'bf198e71ef2872cc8cb21e58c85c252643085168',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.