Re-land of: Allow paint invalidation containers to cross frame boundaries.

Source/core/rendering/RenderLayerRepainter.cpp

Index: Source/core/rendering/RenderLayerRepainter.cpp
diff --git a/Source/core/rendering/RenderLayerRepainter.cpp b/Source/core/rendering/RenderLayerRepainter.cpp
index ac40474e398360208c2cfb34bcbbd49562569bed..1adf2e7a3ecae98bc49b833d6e3dbd213b438d80 100644
--- a/Source/core/rendering/RenderLayerRepainter.cpp
+++ b/Source/core/rendering/RenderLayerRepainter.cpp
@@ -110,22 +110,6 @@ void RenderLayerRepainter::setBackingNeedsRepaintInRect(const LayoutRect& r)
     // https://bugs.webkit.org/show_bug.cgi?id=61159 describes an unreproducible crash here,
     // so assert but check that the layer is composited.
     ASSERT(m_renderer.compositingState() != NotComposited);
-    if (m_renderer.compositingState() == NotComposited) {
-        // If we're trying to repaint the placeholder document layer, propagate the
-        // repaint to the native view system.
-        LayoutRect absRect(r);
-        LayoutPoint delta;
-        m_renderer.layer()->convertToLayerCoords(m_renderer.layer()->root(), delta);
-        absRect.moveBy(delta);
-
-        if (absRect.isEmpty())
-            return;
-
-        RenderView* view = m_renderer.view();
-        if (view)
-            view->invalidatePaintForRectangle(absRect);
-        return;
-    }
     // FIXME: generalize accessors to backing GraphicsLayers so that this code is squasphing-agnostic.
     if (m_renderer.layer()->groupedMapping()) {
         LayoutRect repaintRect = r;