Roll src/third_party/pdfium 6aa2190f70a8..94919f78e1bc (8 commits)

https://pdfium.googlesource.com/pdfium.git/+log/6aa2190f70a8..94919f78e1bc


git log 6aa2190f70a8..94919f78e1bc --date=short --no-merges --format='%ad %ae %s'
2018-07-12 thestig@chromium.org Move CJS_Field private methods into an anonymous namespace.
2018-07-12 thestig@chromium.org Remove parameter to CJS_Field::GetFormFields().
2018-07-12 thestig@chromium.org Add CJS_Field::GetFirstFormField().
2018-07-12 hnakashima@chromium.org Create API to set and get blob values from a mark dict.
2018-07-12 thestig@chromium.org Add more helper functions to check field types in CJS_Field.
2018-07-12 thestig@chromium.org Add a IsCheckBoxOrRadioButton() helper for CJS_Field.
2018-07-12 thestig@chromium.org Use pdfium::Optional in CJS_Return.
2018-07-12 thestig@chromium.org Rename 'ori' to 'backdrop' in rendering code.


Created with:
  gclient setdep -r src/third_party/pdfium@94919f78e1bc

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

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.


TBR=dsinclair@chromium.org

Change-Id: Ia1700215bfc02ab131428fa83463cb3d46be38cb
Reviewed-on: https://chromium-review.googlesource.com/1135617Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#574767}

DEPS

@@ -129,7 +129,7 @@ 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': '6aa2190f70a80b70af7bcfe198041756ed8c803e',
+  'pdfium_revision': '94919f78e1bcceb7cb9eec1c5a883d3d99b1101e',
   # 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.