Roll src/third_party/pdfium 1b2b76d634ba..a9d56105a725 (3 commits)

https://pdfium.googlesource.com/pdfium.git/+log/1b2b76d634ba..a9d56105a725


git log 1b2b76d634ba..a9d56105a725 --date=short --no-merges --format='%ad %ae %s'
2018-08-17 tsepez@chromium.org Use more UnownedPtr<> in cpdf_renderstatus.h.
2018-08-17 thestig@chromium.org Change CFPF_SkiaFontMgr::m_FontFaces to store unique_ptrs.
2018-08-17 thestig@chromium.org Remove CFPF_SkiaFontDescriptor.


Created with:
  gclient setdep -r src/third_party/pdfium@a9d56105a725

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: Ib4d0463fe19cb4edd38ec069965be86186fdf18e
Reviewed-on: https://chromium-review.googlesource.com/1180443Reviewed-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@{#584257}

DEPS

@@ -129,7 +129,7 @@ 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': '1b2b76d634ba3716ee43a553cd952927a7d262a2',
+  'pdfium_revision': 'a9d56105a725d223f87bd979ffbf61a8a2377c08',
   # 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.