Added serialization to protobufs for property trees.

cc/trees/property_tree_unittest.cc

 // 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/trees/property_tree.h"
 
+#include "cc/proto/property_tree.pb.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/trees/draw_property_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 
+TEST(PropertyTreeSerializationTest, EffectNodeDataSerialization) {
+  EffectNodeData original;
+  original.opacity = 0.5f;
+  original.screen_space_opacity = 0.6f;
+  original.has_render_surface = false;
+  original.transform_id = 2;
+  original.clip_id = 3;
+
+  proto::TreeNode proto;
+  original.ToProtobuf(&proto);
+  EffectNodeData result;
+  result.FromProtobuf(proto);
+
+  EXPECT_EQ(original, result);
+}
+
 TEST(PropertyTreeTest, ComputeTransformRoot) {
   TransformTree tree;
   TransformNode& root = *tree.Node(0);
   root.data.local.Translate(2, 2);
   root.data.target_id = 0;
   tree.UpdateTransforms(0);
 
   gfx::Transform expected;
   gfx::Transform transform;
   bool success = tree.ComputeTransform(0, 0, &transform);
@@ skipping 555 matching lines @@
   tree.Node(child)->data.target_id = child;
   tree.set_needs_update(true);
   ComputeTransforms(&tree);
   EXPECT_TRUE(
       tree.Node(parent)->data.node_and_ancestors_have_only_integer_translation);
   EXPECT_TRUE(
       tree.Node(child)->data.node_and_ancestors_have_only_integer_translation);
 }
 
 }  // namespace cc