Enable fast/images with slimming paint

Source/core/paint/LayerClipRecorder.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 ClipRecorder_h
-#define ClipRecorder_h
+#ifndef LayerClipRecorder_h
+#define LayerClipRecorder_h
 
 #include "core/paint/ViewDisplayList.h"
 #include "core/rendering/LayerPaintingInfo.h"
 #include "core/rendering/PaintPhase.h"
-#include "core/rendering/RenderLayerModelObject.h"
-#include "platform/geometry/RoundedRect.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class ClipRect;
 class GraphicsContext;
+class RenderLayerModelObject;
 
-class ClipDisplayItem : public DisplayItem {
-public:
-    ClipDisplayItem(const RenderLayerModelObject* renderer, Type type, IntRect clipRect)
-        : DisplayItem(renderer, type), m_clipRect(clipRect) { }
-
-    Vector<RoundedRect>& roundedRectClips() { return m_roundedRectClips; }
-    virtual void replay(GraphicsContext*) override;
-
-    IntRect m_clipRect;
-    Vector<RoundedRect> m_roundedRectClips;
-#ifndef NDEBUG
-    virtual WTF::String asDebugString() const override;
-#endif
-};
-
-class EndClipDisplayItem : public DisplayItem {
-public:
-    EndClipDisplayItem(const RenderLayerModelObject* renderer) : DisplayItem(renderer, EndClip) { }
-
-    virtual void replay(GraphicsContext*) override;
-};
-
-class ClipRecorder {
+class LayerClipRecorder {
 public:
 
     enum BorderRadiusClippingRule { IncludeSelfForBorderRadius, DoNotIncludeSelfForBorderRadius };
 
     // Set rounded clip rectangles defined by border radii all the way from the LayerPaintingInfo
     // "root" layer down to the specified layer (or the parent of said layer, in case
     // BorderRadiusClippingRule says to skip self). fragmentOffset is used for multicol, to specify
     // the translation required to get from flow thread coordinates to visual coordinates for a
     // certain column.
     // FIXME: The BorderRadiusClippingRule parameter is really useless now. If we want to skip self,
     // why not just supply the parent layer as the first parameter instead?
     // FIXME: The ClipRect passed is in visual coordinates (not flow thread coordinates), but at the
     // same time we pass a fragmentOffset, so that we can translate from flow thread coordinates to
     // visual coordinates. This may look rather confusing/redundant, but it is needed for rounded
     // border clipping. Would be nice to clean up this.
-    explicit ClipRecorder(const RenderLayerModelObject*, GraphicsContext*, DisplayItem::Type, const ClipRect&, const LayerPaintingInfo* localPaintingInfo, const LayoutPoint& fragmentOffset, PaintLayerFlags, BorderRadiusClippingRule = IncludeSelfForBorderRadius);
+    explicit LayerClipRecorder(const RenderLayerModelObject*, GraphicsContext*, DisplayItem::Type, const ClipRect&, const LayerPaintingInfo* localPaintingInfo, const LayoutPoint& fragmentOffset, PaintLayerFlags, BorderRadiusClippingRule = IncludeSelfForBorderRadius);
 
-    ~ClipRecorder();
+    ~LayerClipRecorder();
 
 private:
 
     void collectRoundedRectClips(RenderLayer&, const LayerPaintingInfo& localPaintingInfo, GraphicsContext*, const LayoutPoint& fragmentOffset, PaintLayerFlags,
         BorderRadiusClippingRule, Vector<RoundedRect>& roundedRectClips);
 
     GraphicsContext* m_graphicsContext;
     const RenderLayerModelObject* m_renderer;
 };
 
 } // namespace blink
 
-#endif // ViewDisplayList_h
+#endif // LayerDisplayList_h