Roll src/third_party/pdfium/ 6791295a4..e472622d3 (1 commit)

https://pdfium.googlesource.com/pdfium.git/+log/6791295a4e8c..e472622d33bd

$ git log 6791295a4..e472622d3 --date=short --no-merges --format='%ad %ae %s'
2017-03-10 npm Bound cbox from tricky faces

Created with:
  roll-dep src/third_party/pdfium
BUG=699961

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

Review-Url: https://codereview.chromium.org/2741783005
Cr-Commit-Position: refs/heads/master@{#456215}

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': '6791295a4e8c99097e6d75870871e128284f8cb5',
+  'pdfium_revision': 'e472622d33bdca2316a22ff5ff8d77ac975c2eb2',
   # 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.