Add .clang-format

Change-Id: Ib839c06a21cbb287bad96610d871d22bd83ff88d
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..9b3f9d9
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,24 @@
+#
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+BasedOnStyle: Google
+CommentPragmas: NOLINT:.*
+DerivePointerAlignment: false
+AllowShortFunctionsOnASingleLine: Inline
+ColumnLimit: 100
+TabWidth: 4
+UseTab: Never
+IndentWidth: 4