Roll src/third_party/pdfium bf42afa0df14..83a2cd097544 (3 commits)

https://pdfium.googlesource.com/pdfium.git/+log/bf42afa0df14..83a2cd097544


git log bf42afa0df14..83a2cd097544 --date=short --no-merges --format='%ad %ae %s'
2019-02-14 tsepez@chromium.org Check for user gesture in submitForm() JS callback
2019-02-13 licorn@gmail.com Add use_system_libopenjpeg2 build argument
2019-02-13 tsepez@chromium.org Make CFGAS_Decimal slightly saner


Created with:
  gclient setdep -r src/third_party/pdfium@83a2cd097544

The AutoRoll server is located here: https://autoroll.skia.org/r/pdfium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.



BUG=chromium:917897
TBR=dsinclair@chromium.org

Change-Id: I2d8e1f4be4138c52dc3c8568157fb44fb4fe5dd5
Reviewed-on: https://chromium-review.googlesource.com/c/1471197Reviewed-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@{#632061}

DEPS

@@ -146,7 +146,7 @@ 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': 'bf42afa0df142896bea074f0d4d1d4fd6d3309ab',
+  'pdfium_revision': '83a2cd09754423f8007aa346b00aa02125ba61fd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling openmax_dl
   # and whatever else without interference from each other.