Roll src/third_party/pdfium/ 5acacd361..797ca5cad (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/5acacd361b15..797ca5cad52e

$ git log 5acacd361..797ca5cad --date=short --no-merges --format='%ad %ae %s'
2017-05-25 tsepez Mass conversion of all const-lifetime class members
2017-05-25 dsinclair Rename CPDF_LinkExtract test file to match class

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: I2d80a567877faba75e02143b32bb3854c11f86d2
Reviewed-on: https://chromium-review.googlesource.com/515944
Reviewed-by: <pdfium-deps-roller@chromium.org>
Commit-Queue: <pdfium-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#474843}

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': '5acacd361b15b82a8b30cdd5cb92abb8a2104ecf',
+  'pdfium_revision': '797ca5cad52edde7c65da45a15216f20b1bfd8fd',
   # 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.