Roll src/third_party/pdfium/ 30e049896..20c94774c (1 commit)

https://pdfium.googlesource.com/pdfium.git/+log/30e0498962e8..20c94774cc7e

$ git log 30e049896..20c94774c --date=short --no-merges --format='%ad %ae %s'
2018-03-19 thestig Avoid crashing in FPDFText_CountRects() for negative count values.

Created with:
  roll-dep src/third_party/pdfium
BUG=chromium:821305


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: I8404699c3fa0f549bb32c082e4863e86d344ffba
Reviewed-on: https://chromium-review.googlesource.com/969093Reviewed-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@{#544113}

DEPS

@@ -103,7 +103,7 @@ 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': '30e0498962e8e4d99225a4da854ffd342677922c',
+  'pdfium_revision': '20c94774cc7efb3d90d3181539714f43fdcf01d2',
   # 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.