build: Add missing copyright headers to new GN build files
BUG=21339022
Change-Id: I946fad7bf8116054f9081e064748793e79a6f85a
diff --git a/.gn b/.gn
index c6fefba..901518d 100644
--- a/.gn
+++ b/.gn
@@ -1 +1,21 @@
+#
+# Copyright (C) 2015 Google, Inc.
+#
+# 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.
+#
+
+# This file is used by the GN meta build system to find the root of the source
+# tree and to set startup options. For documentation on the values set in this
+# file, run "gn help dotfile" at the command line.
+
buildconfig = "//build/config/BUILDCONFIG.gn"