[RAL] Make sure RenderLayers are invalidated when moved.

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 95a00b5e2f49aa709e52da1aa5602b36db140356..e13e4513480b2a01b8d41843d886ecde50edc8f7 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -1002,9 +1002,10 @@ public:
     void setLayoutDidGetCalled(bool b) { m_bitfields.setLayoutDidGetCalled(b); }
 
     bool mayNeedInvalidation() { return m_bitfields.mayNeedInvalidation(); }
+    void setMayNeedInvalidationNonRecursive(bool b) { m_bitfields.setMayNeedInvalidation(b); }

[Julien - ping for review, 2014/05/27 12:34:53]

Not a huge fan of 'non-recursive' as it doesn't give us much. I would just have
a 'self' function and a function marking the parent chain (like what we have for
selfNeedsLayout()).

[dsinclair, 2014/05/27 15:37:13]

Done.

     void setMayNeedInvalidation(bool b)
     {
-        m_bitfields.setMayNeedInvalidation(b);
+        setMayNeedInvalidationNonRecursive(b);
 
         // Make sure our parent is marked as needing invalidation.
         if (b && parent() && !parent()->mayNeedInvalidation())