Roll PDFium from 5b2e586ff35d to f7a0128b9441 (11 revisions)

https://pdfium.googlesource.com/pdfium.git/+log/5b2e586ff35d..f7a0128b9441

2020-09-25 thestig@chromium.org Simplify interface to CJX_Object::SetAttributeValue().
2020-09-25 thestig@chromium.org Simplify interface to CJX_Object::SetCData().
2020-09-24 thestig@chromium.org Remove a parameter from CJX_Object::SetAttributeByString().
2020-09-24 thestig@chromium.org Disambiguate CJX_Object methods.
2020-09-24 tsepez@chromium.org Rework bit-twiddling in CFGAS_Stringformatter
2020-09-24 asweintraub@google.com Fix a ClangTidy issue.
2020-09-24 tsepez@chromium.org Nest FX_LOCALE* enums.
2020-09-24 thestig@chromium.org Do IWYU for unowned_ptr.h, and remove some unused includes.
2020-09-24 thestig@chromium.org Clean up CXFA_Node::AddBindItem() and RemoveBindItem().
2020-09-24 tsepez@chromium.org Avoid leaks on fuzzer exit.
2020-09-24 sdefresne@chromium.org Explicitly filter assigments to sources variable

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: chromium:1018739,chromium:1131837
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: Ic843aef9ca85630b3dbea56dbefbb565c071866e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2430350Reviewed-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@{#810502}

DEPS

@@ -215,7 +215,7 @@ 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': '5b2e586ff35d1ebeeb437966dc8c7b5d1070282c',
+  'pdfium_revision': 'f7a0128b944120aa4e0427484bfe1c22604e23c2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.