Move RenderLayer repainting to repaint-after-layout framework.

Source/core/rendering/RenderObject.h

Index: Source/core/rendering/RenderObject.h
diff --git a/Source/core/rendering/RenderObject.h b/Source/core/rendering/RenderObject.h
index a2dd0b68e6703d19feb1eccfbd588ef52d0215d2..e2145d33aeaee9e8c52e0ed27ca6f1a6b6a435fc 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -968,19 +968,17 @@ public:
     const LayoutRect& oldRepaintRect() const { return m_oldRepaintRect; }
     void setOldRepaintRect(const LayoutRect& rect) { m_oldRepaintRect = rect; }
 
+    const LayoutRect newOutlineRect();
+    void setNewOutlineRect(const LayoutRect&);
+
+    const LayoutRect oldOutlineRect();
+    void setOldOutlineRect(const LayoutRect&);
+
     bool shouldDoFullRepaintAfterLayout() const { return m_bitfields.shouldDoFullRepaintAfterLayout(); }
     void setShouldDoFullRepaintAfterLayout(bool b) { m_bitfields.setShouldDoFullRepaintAfterLayout(b); }
     bool shouldRepaintOverflowIfNeeded() const { return m_bitfields.shouldRepaintOverflowIfNeeded(); }
 
-    void clearRepaintRects()
-    {
-        setNewRepaintRect(LayoutRect());
-        setOldRepaintRect(LayoutRect());
-
-        setShouldDoFullRepaintAfterLayout(false);
-        setShouldRepaintOverflowIfNeeded(false);
-        setLayoutDidGetCalled(false);
-    }
+    void clearRepaintState();
 
     // layoutDidGetCalled indicates whether this render object was re-laid-out
     // since the last call to setLayoutDidGetCalled(false) on this object.