[SPv2] Flatten property trees in PaintRecordBuilder into a single display list.

third_party/WebKit/Source/platform/graphics/paint/PaintArtifact.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 PaintArtifact_h
 #define PaintArtifact_h
 
 #include "platform/PlatformExport.h"
 #include "platform/graphics/paint/DisplayItemList.h"
 #include "platform/graphics/paint/PaintChunk.h"
@@ skipping 52 matching lines @@
   }
 
   // Resets to an empty paint artifact.
   void reset();
 
   // Returns the approximate memory usage, excluding memory likely to be
   // shared with the embedder after copying to WebDisplayItemList.
   size_t approximateUnsharedMemoryUsage() const;
 
   // Draws the paint artifact to a GraphicsContext.
-  void replay(GraphicsContext&) const;
+  // |bounds| is the bounding box of the paint artifact's display list.
+  void replay(const FloatRect& bounds, GraphicsContext&) const;
 
   // Writes the paint artifact into a WebDisplayItemList.
   void appendToWebDisplayItemList(WebDisplayItemList*) const;
 
  private:
   DisplayItemList m_displayItemList;
   Vector<PaintChunk> m_paintChunks;
   bool m_isSuitableForGpuRasterization;
 };
 
 }  // namespace blink
 
 #endif  // PaintArtifact_h