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

cc/trees/property_tree.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 <stddef.h>
 
 #include <set>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 960 matching lines @@
 }
 
 bool EffectTree::HasCopyRequests() const {
   return !copy_requests_.empty();
 }
 
 void EffectTree::ClearCopyRequests() {
   for (auto& node : nodes()) {
     node.subtree_has_copy_request = false;
     node.has_copy_request = false;
+    node.closest_ancestor_with_copy_request_id = EffectTree::kInvalidNodeId;
   }
 
   // Any copy requests that are still left will be aborted (sending an empty
   // result) on destruction.
   copy_requests_.clear();
   set_needs_update(true);
 }
 
-int EffectTree::ClosestAncestorWithCopyRequest(int id) const {
-  DCHECK_GE(id, EffectTree::kRootNodeId);
-  const EffectNode* node = Node(id);
-  while (node->id > EffectTree::kContentsRootNodeId) {
-    if (node->has_copy_request)
-      return node->id;
-
-    node = parent(node);
-  }
-
-  if (node->has_copy_request)
-    return node->id;
-  else
-    return EffectTree::kInvalidNodeId;
-}
-
 int EffectTree::LowestCommonAncestorWithRenderSurface(int id_1,
                                                       int id_2) const {
   DCHECK(GetRenderSurface(id_1));
   DCHECK(GetRenderSurface(id_2));
   while (id_1 != id_2) {
     if (id_1 < id_2)
       id_2 = Node(id_2)->target_id;
     else
       id_1 = Node(id_1)->target_id;
   }
@@ skipping 1127 matching lines @@
   const EffectNode* effect_node = effect_tree.Node(effect_id);
 
   if (effect_node->surface_contents_scale.x() != 0.0 &&
       effect_node->surface_contents_scale.y() != 0.0)
     screen_space_transform.Scale(1.0 / effect_node->surface_contents_scale.x(),
                                  1.0 / effect_node->surface_contents_scale.y());
   return screen_space_transform;
 }
 
 }  // namespace cc