Let setShouldDoFullPaintInvalidation accept reason

Source/core/rendering/RenderObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 978 matching lines @@
 
     // The previous paint invalidation rect in the object's previous paint backing.
     const LayoutRect& previousPaintInvalidationRect() const { return m_previousPaintInvalidationRect; }
     void setPreviousPaintInvalidationRect(const LayoutRect& rect) { m_previousPaintInvalidationRect = rect; }
 
     // The previous position of the top-left corner of the object in its previous paint backing.
     const LayoutPoint& previousPositionFromPaintInvalidationBacking() const { return m_previousPositionFromPaintInvalidationBacking; }
     void setPreviousPositionFromPaintInvalidationBacking(const LayoutPoint& positionFromPaintInvalidationBacking) { m_previousPositionFromPaintInvalidationBacking = positionFromPaintInvalidationBacking; }
 
     bool shouldDoFullPaintInvalidation() const { return m_bitfields.fullPaintInvalidationReason() != PaintInvalidationNone; }
-    void setShouldDoFullPaintInvalidation() { setShouldDoFullPaintInvalidationWithReason(PaintInvalidationFull); }
-    void setShouldDoFullPaintInvalidationWithReason(PaintInvalidationReason);
+    void setShouldDoFullPaintInvalidation(PaintInvalidationReason = PaintInvalidationFull);
     void clearShouldDoFullPaintInvalidation() { m_bitfields.setFullPaintInvalidationReason(PaintInvalidationNone); }
 
     bool shouldInvalidateOverflowForPaint() const { return m_bitfields.shouldInvalidateOverflowForPaint(); }
 
     virtual void clearPaintInvalidationState(const PaintInvalidationState&);
 
     // Indicates whether this render object was re-laid-out since the last frame.
     // The flag will be cleared during invalidateTreeIfNeeded.
     bool layoutDidGetCalledSinceLastFrame() const { return m_bitfields.layoutDidGetCalledSinceLastFrame(); }
 
@@ skipping 526 matching lines @@
 void showTree(const blink::RenderObject*);
 void showLineTree(const blink::RenderObject*);
 void showRenderTree(const blink::RenderObject* object1);
 // We don't make object2 an optional parameter so that showRenderTree
 // can be called from gdb easily.
 void showRenderTree(const blink::RenderObject* object1, const blink::RenderObject* object2);
 
 #endif
 
 #endif // RenderObject_h