Update from https://crrev.com/308996

cc/trees/property_tree_builder.h

Index: cc/trees/property_tree_builder.h
diff --git a/cc/trees/property_tree_builder.h b/cc/trees/property_tree_builder.h
new file mode 100644
index 0000000000000000000000000000000000000000..f949c9a430efeef6b826726224348dc74940655d
--- /dev/null
+++ b/cc/trees/property_tree_builder.h
@@ -0,0 +1,31 @@
+// 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.
+
+#ifndef CC_TREES_PROPERTY_TREE_BUILDER_H_
+#define CC_TREES_PROPERTY_TREE_BUILDER_H_
+
+#include <vector>
+
+#include "cc/trees/layer_tree_host_common.h"
+#include "cc/trees/property_tree.h"
+
+namespace cc {
+
+class LayerTreeHost;
+
+class PropertyTreeBuilder {
+ public:
+  static void BuildPropertyTrees(Layer* root_layer,
+                                 const Layer* page_scale_layer,
+                                 float page_scale_factor,
+                                 float device_scale_factor,
+                                 const gfx::Rect& viewport,
+                                 const gfx::Transform& device_transform,
+                                 TransformTree* transform_tree,
+                                 ClipTree* clip_tree);
+};
+
+}  // namespace cc
+
+#endif  // CC_TREES_PROPERTY_TREE_BUILDER_H_