Roll src/third_party/pdfium/ 1b02d0180..c4ecd7b2e (1 commit)

https://pdfium.googlesource.com/pdfium.git/+log/1b02d0180403..c4ecd7b2e10e

$ git log 1b02d0180..c4ecd7b2e --date=short --no-merges --format='%ad %ae %s'
2017-05-23 dsinclair Cleanup default values and methods in CXFA_Widgetdata

Created with:
  roll-dep src/third_party/pdfium


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

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


TBR=dsinclair@chromium.org

Change-Id: Ia13f388997d6d9d2926a3bac899831f2447fa092
Reviewed-on: https://chromium-review.googlesource.com/512224
Reviewed-by: <pdfium-deps-roller@chromium.org>
Commit-Queue: <pdfium-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#473956}

DEPS

@@ -64,7 +64,7 @@ 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': '1b02d01804039a9f0584c081294ceb07e52b9bdc',
+  'pdfium_revision': 'c4ecd7b2e10e37a3b29eb380472fbee4936522ac',
   # 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.