Roll src/third_party/pdfium 52e9146a65fd..c58babd220a9 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/52e9146a65fd..c58babd220a9

git log 52e9146a65fd..c58babd220a9 --date=short --first-parent --format='%ad %ae %s'
2020-01-14 tsepez@chromium.org Initialize more fwl classes in header.
2020-01-14 thestig@chromium.org Rename CPDF_DIBBase to CPDF_DIB.

Created with:
  gclient setdep -r src/third_party/pdfium@c58babd220a9

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: I6f310c04c9cb1ba3fe015ddb58ca211fe51c7a16
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2001517Reviewed-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@{#731722}

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': '52e9146a65fddd9687894c03b2051f9829cb57e7',
+  'pdfium_revision': 'c58babd220a9dc4d13757be8799bffbd59cac73b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.