Compute if a layer is drawn without LayerTree hierarchy

cc/proto/property_tree.proto

 // Copyright 2015 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.
 
 syntax = "proto2";
 
 import "rectf.proto";
 import "scroll_offset.proto";
 import "transform.proto";
 import "vector2df.proto";
@@ skipping 63 matching lines @@
   optional bool layers_are_clipped = 9;
   optional bool layers_are_clipped_when_surfaces_disabled = 10;
   optional bool resets_clip = 11;
 }
 
 // Proto for struct EffectNodeData.
 message EffectNodeData {
   optional float opacity = 1;
   optional float screen_space_opacity = 2;
   optional bool has_render_surface = 3;
-  optional int64 num_copy_requests_in_subtree = 4;
-  optional int64 transform_id = 5;
-  optional int64 clip_id = 6;
+  optional bool contributes_to_copy_request = 4;
+  optional int64 num_copy_requests_in_subtree = 5;
+  optional int64 transform_id = 6;
+  optional int64 clip_id = 7;
 }
 
 // This defines the proto used for all types of struct TreeNode.
 message TreeNode {
   // The following fields are the base TreeNode properties. This list
   // corresponds to the data members from struct TreeNode.
   optional int64 id = 1;
   optional int64 parent_id = 2;
   optional int64 owner_id = 3;
 
@@ skipping 43 matching lines @@
 // Proto for class PropertyTrees.
 message PropertyTrees {
   optional PropertyTree transform_tree = 1;
   optional PropertyTree effect_tree = 2;
   optional PropertyTree clip_tree = 3;
 
   optional bool needs_rebuild = 4;
   optional bool non_root_surfaces_enabled = 5;
   optional int64 sequence_number = 6;
 }