Roll src/third_party/pdfium/ 3e98158a6..35396df87 (7 commits).

https://pdfium.googlesource.com/pdfium.git/+log/3e98158a6c47..35396df876cb

$ git log 3e98158a6..35396df87 --date=short --no-merges --format='%ad %ae %s'
2016-08-26 vmpstr build_gyp: Remove deprecated flag, which is enabled by default.
2016-08-26 npm Revert "Remove the document tagged code as it is unused."
2016-08-26 tsepez Rework CFX_CountRef in terms of CFX_RetainPtr.
2016-08-26 npm Move the classes in fpdf_text_int.cpp into their own files
2016-08-26 thestig Roll DEPS for skia to 3bf7509c.
2016-08-26 thestig Roll DEPS for icu to 2341038b.
2016-08-26 thestig Roll DEPS for clang to 797371be.

TBR=dsinclair@chromium.org

Review-Url: https://codereview.chromium.org/2284023002
Cr-Commit-Position: refs/heads/master@{#414869}

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': '3e98158a6c47361ca7d6c2c18d47c9f8f3aabb8a',
+  'pdfium_revision': '35396df876cbf12c18a6de90e075b57adf74a1a7',
   # 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.