Don't cache subsequence whose layer is not fully contained by repaint rect

Source/core/paint/DeprecatedPaintLayerReflectionInfo.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 28 matching lines @@
  * deletingthe provisions above and replace them with the notice and
  * other provisions required by the MPL or the GPL, as the case may be.
  * If you do not delete the provisions above, a recipient may use your
  * version of this file under any of the LGPL, the MPL or the GPL.
  */
 
 #ifndef DeprecatedPaintLayerReflectionInfo_h
 #define DeprecatedPaintLayerReflectionInfo_h
 
 #include "core/layout/LayoutBoxModelObject.h"
-#include "core/paint/DeprecatedPaintLayerPaintingInfo.h"
+#include "core/paint/DeprecatedPaintLayerPainter.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class DeprecatedPaintLayer;
 class LayoutReplica;
 
 class DeprecatedPaintLayerReflectionInfo {
     WTF_MAKE_FAST_ALLOCATED(DeprecatedPaintLayerReflectionInfo);
     WTF_MAKE_NONCOPYABLE(DeprecatedPaintLayerReflectionInfo);
 public:
     explicit DeprecatedPaintLayerReflectionInfo(LayoutBox&);
     void destroy();
 
     LayoutReplica* reflection() const { return m_reflection; }
     DeprecatedPaintLayer* reflectionLayer() const;
 
     bool isPaintingInsideReflection() const { return m_isPaintingInsideReflection; }
 
     void updateAfterStyleChange(const ComputedStyle* oldStyle);
 
-    void paint(GraphicsContext*, const DeprecatedPaintLayerPaintingInfo&, PaintLayerFlags);
+    DeprecatedPaintLayerPainter::PaintResult paint(GraphicsContext*, const DeprecatedPaintLayerPaintingInfo&, PaintLayerFlags);
 
 private:
     LayoutBox& box() { return *m_box; }
     const LayoutBox& box() const { return *m_box; }
 
     LayoutBox* m_box;
     LayoutReplica* m_reflection;
 
     // A state bit tracking if we are painting inside a replica.
     unsigned m_isPaintingInsideReflection : 1;
 };
 
 } // namespace blink
 
 #endif // DeprecatedPaintLayerReflectinInfo_h