cc: Make visible rect computation aware of pixel-moving filters

cc/trees/property_tree_unittest.cc

Index: cc/trees/property_tree_unittest.cc
diff --git a/cc/trees/property_tree_unittest.cc b/cc/trees/property_tree_unittest.cc
index 9b3d972369b6e369b862bfdcd37c2e8551ba1fc3..14ed9bace57762b597759c25b41a32e35aa911b7 100644
--- a/cc/trees/property_tree_unittest.cc
+++ b/cc/trees/property_tree_unittest.cc
@@ -4,6 +4,7 @@
 
 #include "cc/trees/property_tree.h"
 
+#include "base/memory/ptr_util.h"
 #include "cc/input/main_thread_scrolling_reason.h"
 #include "cc/proto/property_tree.pb.h"
 #include "cc/test/geometry_test_utils.h"
@@ -126,6 +127,34 @@ TEST(PropertyTreeSerializationTest, ClipNodeSerialization) {
   EXPECT_EQ(original, result);
 }
 
+TEST(PropertyTreeSerializationTest, ClipNodeWithExpanderSerialization) {
+  ClipNode original;
+  original.id = 3;
+  original.parent_id = 2;
+  original.owner_id = 4;
+  original.clip = gfx::RectF(0.5f, 0.5f);
+  original.combined_clip_in_target_space = gfx::RectF(0.6f, 0.6f);
+  original.clip_in_target_space = gfx::RectF(0.7f, 0.7f);
+  original.transform_id = 2;
+  original.target_transform_id = 3;
+  original.target_effect_id = 4;
+  original.clip_type = ClipNode::ClipType::EXPANDS_CLIP;
+  original.clip_expander =
+      base::MakeUnique<ClipExpander>(ClipExpander::ExpanderType::FILTER, 8);
+  original.layer_clipping_uses_only_local_clip = false;
+  original.target_is_clipped = false;
+  original.layers_are_clipped = false;
+  original.layers_are_clipped_when_surfaces_disabled = false;
+  original.resets_clip = false;
+
+  proto::TreeNode proto;
+  original.ToProtobuf(&proto);
+  ClipNode result;
+  result.FromProtobuf(proto);
+
+  EXPECT_EQ(original, result);
+}
+
 TEST(PropertyTreeSerializationTest, ClipTreeSerialization) {
   ClipTree original;
   ClipNode& root = *original.Node(0);