XFA: clang-format all pdfium code, again.

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
new file mode 100644
index 0000000000000000000000000000000000000000..1ad3a5ea3e3339ac60f85cb8323c128271c016bd
--- /dev/null
+++ b/PRESUBMIT.py
@@ -0,0 +1,14 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Presubmit script for pdfium.
+
+See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
+for more details about the presubmit API built into depot_tools.
+"""
+
+def CheckChangeOnUpload(input_api, output_api):
+  results = []
+  results += input_api.canned_checks.CheckPatchFormatted(input_api, output_api)
+  return results