Roll PDFium from a3806cb35923 to d3664703dfa9 (1 revision)

https://pdfium.googlesource.com/pdfium.git/+log/a3806cb35923..d3664703dfa9

2021-01-13 tsepez@chromium.org Avoid undefined behavior warning in GetArabicFormTable().

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/+doc/master/autoroll/README.md

Bug: None
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: I2e9828288b836c54d365145a475982936fe2ee2c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2627887Reviewed-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@{#843155}

DEPS

@@ -219,7 +219,7 @@ 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': 'a3806cb359231cd0f4286a0982255ff3d2077b71',
+  'pdfium_revision': 'd3664703dfa9dc530246de50a16b8e8523b676d6',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.