Roll src/third_party/pdfium f78267e16157..407a081da693 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/f78267e16157..407a081da693


git log f78267e16157..407a081da693 --date=short --no-merges --format='%ad %ae %s'
2018-12-12 tsepez@chromium.org Remove fragile script index mechanism.
2018-12-12 tsepez@chromium.org Remove strings/hashes from element-atttribute table.


Created with:
  gclient setdep -r src/third_party/pdfium@407a081da693

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.


TBR=dsinclair@chromium.org

Change-Id: I2e69e4733b02f5289be6046dffe3cb7d45bc104d
Reviewed-on: https://chromium-review.googlesource.com/c/1373129Reviewed-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@{#615804}

DEPS

@@ -139,7 +139,7 @@ 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': 'f78267e16157e6d69805ef987361eb21811a3cec',
+  'pdfium_revision': '407a081da693b7ed877e85be24c3eac9fe831315',
   # 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.