Roll src/third_party/pdfium/ 120c19b6a..135c6601b (13 commits)

https://pdfium.googlesource.com/pdfium.git/+log/120c19b6a193..135c6601bd9d

$ git log 120c19b6a..135c6601b --date=short --no-merges --format='%ad %ae %s'
2017-11-21 thestig Add {Byte/Wide}String::Trim().
2017-11-21 thestig Clean up CJS_PublicMethods.
2017-11-21 dsinclair Make CXFA_CaptionData methods const
2017-11-21 dsinclair Make CXFA_CalculateData methods const
2017-11-21 dsinclair Remove unused CXFA_BoxData methods
2017-11-21 dsinclair Cleanup CXFA_BindItemsData methods
2017-11-21 dsinclair Cleanup CXFA_EventData methods
2017-11-21 dsinclair Rename CXFA_DataData::TryMeasure
2017-11-21 dsinclair Remove unused CXFA_DataData::SetMeasure
2017-11-21 dsinclair Convert CXFA_WidgetData methods to Optional
2017-11-21 dsinclair Rename the CXFA_WidgetData size methods from Get to Try
2017-11-21 dsinclair Make CXFA_MarginData::Try* methods return Optional
2017-11-21 dsinclair Add CXFA_MarginData::Get*Inset helpers

Created with:
  roll-dep src/third_party/pdfium


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: I67288b0345817e8fcf2bff7169fcac484bf02f0f
Reviewed-on: https://chromium-review.googlesource.com/782620
Reviewed-by: <pdfium-deps-roller@chromium.org>
Commit-Queue: <pdfium-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#518370}

DEPS

@@ -98,7 +98,7 @@ 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': '120c19b6a19377c341658c342c4351eccbb59741',
+  'pdfium_revision': '135c6601bd9d12bd935371d3122f8e75391de75b',
   # 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.