Roll pdfium to 905cc10ecd.

DEPS

 # This file is used to manage the dependencies of the Chromium src repo. It is
 # used by gclient to determine what version of each dependency to check out, and
 # where.
 #
 # For more information, please refer to the official documentation:
 #   https://sites.google.com/a/chromium.org/dev/developers/how-tos/get-the-code
 #
 # When adding a new dependency, please update the top-level .gitignore file
 # to list the dependency's destination directory.
 #
@@ skipping 34 matching lines @@
   'swarming_revision': '2866a22530cb65feae5d9f64c83636aed5391d06',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
   'angle_revision': 'afe44c41cde9be7ca72968f63580cd6afa89c65e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.
   'buildtools_revision': '565d04e8741429fb1b4f26d102f2c6c3b849edeb',  # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.
-  'pdfium_revision': '7ea305f1bd4efc1838fba053e4399358d6765ec7',
+  'pdfium_revision': '905cc10ecd06bcacfefb747cc3370c72772f0e15',
   # 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.
   'openmax_dl_revision': '22bb1085a6a0f6f3589a8c3d60ed0a9b82248275',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
   'boringssl_revision': '43bd18f3b2a0b4ae9a807b432631b4cdb8339a46',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling nss
@@ skipping 734 matching lines @@
     'pattern': '.',
     'action': [
         'python',
         'src/tools/check_git_config.py',
         '--running-as-hook',
     ],
   },
 ]