Reland of Data structures for Safe Browsing subresource filtering rules.

components/subresource_filter/core/common/flat/BUILD.gn

Index: components/subresource_filter/core/common/flat/BUILD.gn
diff --git a/components/subresource_filter/core/common/flat/BUILD.gn b/components/subresource_filter/core/common/flat/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..195c0cd11e02c6f6711ae1150e1c73aaa52a374c
--- /dev/null
+++ b/components/subresource_filter/core/common/flat/BUILD.gn
@@ -0,0 +1,11 @@
+# Copyright 2016 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.
+
+import("//third_party/flatbuffers/flatbuffer.gni")
+
+flatbuffer("flatbuffer") {
+  sources = [
+    "rules.fbs",
+  ]
+}