Roll src/third_party/pdfium/ 8c2a8cda1..d827111fb (2 commits).

https://pdfium.googlesource.com/pdfium.git/+log/8c2a8cda1bdb..d827111fb10c

$ git log 8c2a8cda1..d827111fb --date=short --no-merges --format='%ad %ae %s'
2016-09-08 dsinclair Switch to ValueOrDie
2016-09-08 weili Fix leaks in class CFGAS_FontMgrImp

BUG=637984

TBR=dsinclair@chromium.org

Review-Url: https://codereview.chromium.org/2324833003
Cr-Commit-Position: refs/heads/master@{#417346}

DEPS

@@ -60,7 +60,7 @@ 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': '8c2a8cda1bdb9f57513af5a21a5d0ce32614e52b',
+  'pdfium_revision': 'd827111fb10c7d8b89bc954ab0934b4009d6643c',
   # 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.