Implement rational overflow clipping in SPv2

third_party/WebKit/Source/platform/graphics/compositing/PropertyTreeManager.h

 // 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.
 
 #ifndef PropertyTreeManager_h
 #define PropertyTreeManager_h
 
 #include "platform/wtf/HashMap.h"
 #include "platform/wtf/HashSet.h"
 #include "platform/wtf/Noncopyable.h"
@@ skipping 68 matching lines @@
   // until |owning_layer_id| is removed from the scroll node.
   void UpdateLayerScrollMapping(cc::Layer*, const TransformPaintPropertyNode*);
 
   int SwitchToEffectNode(const EffectPaintPropertyNode& next_effect);
   int GetCurrentCompositorEffectNodeIndex() const {
     return effect_stack_.back().id;
   }
 
  private:
   void BuildEffectNodesRecursively(const EffectPaintPropertyNode* next_effect);
+  void BuildEffectNode(const EffectPaintPropertyNode*);
+
+  void BuildRoundedClipEffectNodesBetween(
+      const ClipPaintPropertyNode* descendant_clip,
+      const ClipPaintPropertyNode* ancestor_clip);
+  void BuildRoundedClipEffect(const ClipPaintPropertyNode*);
 
   cc::TransformTree& GetTransformTree();
   cc::ClipTree& GetClipTree();
   cc::EffectTree& GetEffectTree();
   cc::ScrollTree& GetScrollTree();
 
   int EnsureCompositorScrollNode(const ScrollPaintPropertyNode*);
 
   const EffectPaintPropertyNode* CurrentEffectNode() const;
 
@@ skipping 22 matching lines @@
   int sequence_number_;
 
 #if DCHECK_IS_ON()
   HashSet<const EffectPaintPropertyNode*> effect_nodes_converted_;
 #endif
 };
 
 }  // namespace blink
 
 #endif  // PropertyTreeManager_h