cc: Add SwapPromiseManager and SurfaceSequenceGenerator.

cc/trees/layer_tree_host_unittest_serialization.cc

Index: cc/trees/layer_tree_host_unittest_serialization.cc
diff --git a/cc/trees/layer_tree_host_unittest_serialization.cc b/cc/trees/layer_tree_host_unittest_serialization.cc
index 0d0555ec60be0e48da8f551d17b01ddfe861ae07..416f4a83d4b5135d926101ad4f3c869839ada5f8 100644
--- a/cc/trees/layer_tree_host_unittest_serialization.cc
+++ b/cc/trees/layer_tree_host_unittest_serialization.cc
@@ -209,10 +209,6 @@ class LayerTreeHostSerializationTest : public testing::Test {
     EXPECT_EQ(layer_tree_src->inputs_.selection,
               layer_tree_dst->inputs_.selection);
     EXPECT_EQ(layer_tree_src->property_trees_, layer_tree_dst->property_trees_);
-    EXPECT_EQ(layer_tree_host_src_->surface_client_id_,
-              layer_tree_host_dst_->surface_client_id_);
-    EXPECT_EQ(layer_tree_host_src_->next_surface_sequence_,
-              layer_tree_host_dst_->next_surface_sequence_);
 
     // All layers must have a property tree index that matches PropertyTrees.
     if (layer_tree_dst->property_trees_.sequence_number) {
@@ -301,11 +297,6 @@ class LayerTreeHostSerializationTest : public testing::Test {
     layer_tree_src->property_trees_.sequence_number =
         layer_tree_src->property_trees_.sequence_number * 3 + 1;
 
-    layer_tree_host_src_->surface_client_id_ =
-        layer_tree_host_src_->surface_client_id_ * 3 + 1;
-    layer_tree_host_src_->next_surface_sequence_ =
-        layer_tree_host_src_->next_surface_sequence_ * 3 + 1;
-
     VerifySerializationAndDeserialization();
   }