cc : Layers with singular transforms and copy request should be drawn

cc/trees/effect_node.cc

 // Copyright 2016 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 "base/trace_event/trace_event_argument.h"
 #include "cc/layers/layer.h"
 #include "cc/trees/effect_node.h"
 #include "cc/trees/property_tree.h"
 
 namespace cc {
@@ skipping 13 matching lines @@
       subtree_hidden(false),
       has_potential_filter_animation(false),
       has_potential_opacity_animation(false),
       is_currently_animating_filter(false),
       is_currently_animating_opacity(false),
       effect_changed(false),
       subtree_has_copy_request(0),
       transform_id(0),
       clip_id(0),
       target_id(1),
-      mask_layer_id(-1) {}
+      mask_layer_id(-1),
+      closest_ancestor_with_copy_request_id(-1) {}
 
 EffectNode::EffectNode(const EffectNode& other) = default;
 
 bool EffectNode::operator==(const EffectNode& other) const {
   return id == other.id && parent_id == other.parent_id &&
          owning_layer_id == other.owning_layer_id && opacity == other.opacity &&
          screen_space_opacity == other.screen_space_opacity &&
          has_render_surface == other.has_render_surface &&
          has_copy_request == other.has_copy_request &&
          filters == other.filters &&
          background_filters == other.background_filters &&
          filters_origin == other.filters_origin &&
          blend_mode == other.blend_mode &&
          surface_contents_scale == other.surface_contents_scale &&
          unscaled_mask_target_size == other.unscaled_mask_target_size &&
          hidden_by_backface_visibility == other.hidden_by_backface_visibility &&
          double_sided == other.double_sided && is_drawn == other.is_drawn &&
          subtree_hidden == other.subtree_hidden &&
          has_potential_filter_animation ==
              other.has_potential_filter_animation &&
          has_potential_opacity_animation ==
              other.has_potential_opacity_animation &&
          is_currently_animating_filter == other.is_currently_animating_filter &&
          is_currently_animating_opacity ==
              other.is_currently_animating_opacity &&
          effect_changed == other.effect_changed &&
          subtree_has_copy_request == other.subtree_has_copy_request &&
          transform_id == other.transform_id && clip_id == other.clip_id &&
-         target_id == other.target_id && mask_layer_id == other.mask_layer_id;
+         target_id == other.target_id && mask_layer_id == other.mask_layer_id &&
+         closest_ancestor_with_copy_request_id ==
+             other.closest_ancestor_with_copy_request_id;
 }
 
 void EffectNode::AsValueInto(base::trace_event::TracedValue* value) const {
   value->SetInteger("id", id);
   value->SetInteger("parent_id", parent_id);
   value->SetInteger("owning_layer_id", owning_layer_id);
   value->SetDouble("opacity", opacity);
   value->SetBoolean("has_render_surface", has_render_surface);
   value->SetBoolean("has_copy_request", has_copy_request);
   value->SetBoolean("double_sided", double_sided);
   value->SetBoolean("is_drawn", is_drawn);
   value->SetBoolean("has_potential_filter_animation",
                     has_potential_filter_animation);
   value->SetBoolean("has_potential_opacity_animation",
                     has_potential_opacity_animation);
   value->SetBoolean("effect_changed", effect_changed);
   value->SetInteger("subtree_has_copy_request", subtree_has_copy_request);
   value->SetInteger("transform_id", transform_id);
   value->SetInteger("clip_id", clip_id);
   value->SetInteger("target_id", target_id);
   value->SetInteger("mask_layer_id", mask_layer_id);
+  value->SetInteger("closest_ancestor_with_copy_request_id",
+                    closest_ancestor_with_copy_request_id);
 }
 
 }  // namespace cc