Roll src/third_party/pdfium/ 65c255ad2..7c7f78a43 (2 commits)

https://pdfium.googlesource.com/pdfium.git/+log/65c255ad2076..7c7f78a432a4

$ git log 65c255ad2..7c7f78a43 --date=short --no-merges --format='%ad %ae %s'
2018-04-27 tsepez Tidy cfx_gif.h.
2018-04-27 thestig Remove an obsolete TODO.

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: I69c67011b0219a9cb07db32dd91caca43b877934
Reviewed-on: https://chromium-review.googlesource.com/1034020
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#554595}

DEPS

@@ -114,7 +114,7 @@ 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': '65c255ad2076027203b3c871295f26bc6d8b62fa',
+  'pdfium_revision': '7c7f78a432a41b7074d225a91a590185e02aacf7',
   # 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.