[not for review] Add Draw entries to window Performance Timeline

cc/layers/paint_properties.cc

Index: cc/layers/paint_properties.cc
diff --git a/cc/layers/paint_properties.cc b/cc/layers/paint_properties.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5cdcad47b7ade93f77322eb13f330e318f9dd06a
--- /dev/null
+++ b/cc/layers/paint_properties.cc
@@ -0,0 +1,13 @@
+// Copyright 2014 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.
+
+#include "cc/layers/paint_properties.h"
+
+namespace cc {
+
+PaintProperties::PaintProperties() : source_frame_number(-1) {}
+
+PaintProperties::~PaintProperties() {}
+
+}  // namespace cc