Use Skia's oblique slant.

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 829 matching lines @@
   },
   {
     # Pull doclava binaries if building for Android.
     'name': 'doclava',
     'pattern': '.',
     'action': ['python',
                'src/build/android/download_doclava.py',
     ],
   },
   {
+    'name': 'apply_custom_patch',
+    'pattern': '.',
+    'action': ['apply_issue',
+               '--root_dir', 'src/third_party/skia',
+               '--issue', '1921903002',
+               '--patchset', '20001',
+               '--server', 'https://codereview.chromium.org',
+               '--force',
+               '--ignore_deps',
+               '-v',
+               '-v',
+               '--no-auth',
+               '--blacklist', 'DEPS'
+    ],
+  },
+  {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     'name': 'gyp',
     'pattern': '.',
     'action': ['python', 'src/build/gyp_chromium', '--running-as-hook'],
   },
 ]