Roll src/third_party/pdfium/ 9fa503624..f2d490650 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/9fa5036245c3..f2d490650cef

$ git log 9fa503624..f2d490650 --date=short --no-merges --format='%ad %ae %s'
2017-11-13 hnakashima Remove virtual from EmbedderTest methods that are not overridden.
2017-11-13 thestig Check first page number in IsLinearizedHeaderValid().

Created with:
  roll-dep src/third_party/pdfium
BUG=781529


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: Ia254f6081520caf0c3eaa7cd6167c5ef6e52bdcc
Reviewed-on: https://chromium-review.googlesource.com/767013
Reviewed-by: <pdfium-deps-roller@chromium.org>
Commit-Queue: <pdfium-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516099}

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': '9fa5036245c34ce8c420531c5b02e699a861bc18',
+  'pdfium_revision': 'f2d490650cef611f92e5d4a112c90647f08f054e',
   # 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.