Roll PDFium from f32ae562fe52 to 634973155ab5 (13 revisions)

https://pdfium.googlesource.com/pdfium.git/+log/f32ae562fe52..634973155ab5

2020-06-02 thestig@chromium.org Use more RetainPtrs in CXFA_FFTabOrderPageWidgetIterator.
2020-06-02 thestig@chromium.org Clean up CXFA_FFTabOrderPageWidgetIterator.
2020-06-02 thestig@chromium.org Fix an UnownedPtr error in CXFA_FFTabOrderPageWidgetIterator.
2020-06-02 thestig@chromium.org Mass rewrite dtors to use "= default".
2020-06-02 thestig@chromium.org Remove unused CXFA_FFPageWidgetIterator members.
2020-06-02 thestig@chromium.org Remove DeviceType::kUnknown.
2020-06-01 nigi@chromium.org Update comments and add an embeddertest for FPDF_LCD_TEXT.
2020-06-01 thestig@chromium.org Mark CFX_RenderDevice::SetDeviceDriver() as protected.
2020-06-01 thestig@chromium.org Mark CFX_RenderDevice ctor as protected.
2020-06-01 thestig@chromium.org Make CPDFXFA_Page annot iteration methods more consistent.
2020-06-01 pdfium-autoroll@skia-public.iam.gserviceaccount.com Roll Code Coverage from a8f20a1dacc2 to a70177d4a2e5 (3 revisions)
2020-06-01 pdfium-autoroll@skia-public.iam.gserviceaccount.com Roll Catapult from 31b81b84c957 to 91fa1462a88f (119 revisions)
2020-05-29 nigi@chromium.org Remove repetitive |FXTEXT_CLEARTYPE| usages in fxbarcode/oned/.

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:980116,chromium:980161
Tbr: pdfium-deps-rolls@chromium.org
Change-Id: Ie371134e4b5618bb5dbef9d2fd0ae33d76e4bae6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2226041Reviewed-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@{#773986}

DEPS

@@ -198,7 +198,7 @@ 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': 'f32ae562fe522ba1ac55b33ae4efe15ca98f58fc',
+  'pdfium_revision': '634973155ab5f27f443c38292efca94647bff5f9',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.