Roll src/third_party/pdfium f737d4bdb38d..75a486e0a03a (4 commits)

https://pdfium.googlesource.com/pdfium.git/+log/f737d4bdb38d..75a486e0a03a


git log f737d4bdb38d..75a486e0a03a --date=short --no-merges --format='%ad %ae %s'
2018-11-30 thestig@chromium.org Export defines to dependents of the "pdfium" target.
2018-11-29 thestig@chromium.org Bump up |kMaxObjectNumber|.
2018-11-29 thestig@chromium.org Make CBC_SymbolInfo::Lookup() return a const pointer.
2018-11-29 thestig@chromium.org Fix WideString() vs {} confusion in fxbarcode.


Created with:
  gclient setdep -r src/third_party/pdfium@75a486e0a03a

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:910009,chromium:910198
TBR=dsinclair@chromium.org

Change-Id: I84cd9d7ccecc0acb72b8e8fe91394b486affea8f
Reviewed-on: https://chromium-review.googlesource.com/c/1356130Reviewed-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@{#612552}

DEPS

@@ -136,7 +136,7 @@ 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': 'f737d4bdb38d237b197b8924e69ded36c33b5a3f',
+  'pdfium_revision': '75a486e0a03af0753743f5637abf929ea0bd3bbd',
   # 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.