Roll src/third_party/pdfium d41bcabd124f..c93fa1ff0194 (4 commits)

https://pdfium.googlesource.com/pdfium.git/+log/d41bcabd124f..c93fa1ff0194

git log d41bcabd124f..c93fa1ff0194 --date=short --first-parent --format='%ad %ae %s'
2020-02-24 thakis@chromium.org Fix a Wrange-loop-analysis warnings in pdfium.
2020-02-22 thestig@chromium.org Disable RenderManyRectanglesWithExternalMemory test for Skia.
2020-02-21 thestig@chromium.org Roll third_party/freetype/src/ 8930cc961..49f3394d7 (3 commits)
2020-02-21 thestig@chromium.org Add placeholder comments to DEPS to mitigate CQ interference.

Created with:
  gclient setdep -r src/third_party/pdfium@c93fa1ff0194

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:1039697
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: I3723464918b59eec3463ae50f8ff71cc972c9756
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2070436Reviewed-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@{#744028}

DEPS

@@ -191,7 +191,7 @@ 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': 'd41bcabd124f06c919f38849d6258960eb635f20',
+  'pdfium_revision': 'c93fa1ff01942209632af85a005d27b9be9c5236',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.