Update from https://crrev.com/320343

cc/output/bsp_walk_action.h

 // 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.
 
 #ifndef CC_OUTPUT_BSP_WALK_ACTION_H_
 #define CC_OUTPUT_BSP_WALK_ACTION_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/output/direct_renderer.h"
 #include "cc/quads/draw_polygon.h"
 
 namespace cc {
 
 class CC_EXPORT BspWalkAction {
  public:
   virtual void operator()(DrawPolygon* item) = 0;
 };
 
 // The BspTree class takes ownership of all the DrawPolygons returned in list_
 // so the BspTree must be preserved while elements in that vector are in use.
+class CC_EXPORT BspWalkActionDrawPolygon : public BspWalkAction {
+ public:
+  void operator()(DrawPolygon* item) override;
+
+  BspWalkActionDrawPolygon(DirectRenderer* renderer,
+                           DirectRenderer::DrawingFrame* frame,
+                           const gfx::Rect& render_pass_scissor,
+                           bool using_scissor_as_optimization);
+
+ private:
+  DirectRenderer* renderer_;
+  DirectRenderer::DrawingFrame* frame_;
+  const gfx::Rect& render_pass_scissor_;
+  bool using_scissor_as_optimization_;
+};
+
 class CC_EXPORT BspWalkActionToVector : public BspWalkAction {
  public:
   explicit BspWalkActionToVector(std::vector<DrawPolygon*>* in_list);
   void operator()(DrawPolygon* item) override;
 
  private:
   std::vector<DrawPolygon*>* list_;
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_BSP_WALK_ACTION_H_