Roll src/third_party/pdfium 56686c32e743..1d34dc592fc1 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/56686c32e743..1d34dc592fc1

git log 56686c32e743..1d34dc592fc1 --date=short --first-parent --format='%ad %ae %s'
2020-03-18 dhoss@chromium.org Support non-standard trailers in fixup_pdf_template.py
2020-03-18 ankk@microsoft.com Add FORM_GetFocusedAnnot and FORM_SetFocusedAnnot APIs

Created with:
  gclient setdep -r src/third_party/pdfium@1d34dc592fc1

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:1023284
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: I20560d52b9640b2b36c7423bb4d60798475b6cc9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108588Reviewed-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@{#751308}

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': '56686c32e74301752e76e4ef8b52b012fe76ea45',
+  'pdfium_revision': '1d34dc592fc1272db22a1c84dd3f9a7ef72fcebd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.