Remove assumption that null containerForRepaint assumes RenderView

Source/core/rendering/compositing/RenderLayerCompositor.cpp

Index: Source/core/rendering/compositing/RenderLayerCompositor.cpp
diff --git a/Source/core/rendering/compositing/RenderLayerCompositor.cpp b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
index 35a7919ac64364945c7249a5813aba866d7b5e40..c8ed2ec3a565a122ba6d45be079662d8b859b509 100644
--- a/Source/core/rendering/compositing/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
@@ -793,9 +793,8 @@ void RenderLayerCompositor::repaintOnCompositingChange(RenderLayer* layer)
         return;
 
     RenderLayerModelObject* repaintContainer = layer->renderer()->containerForRepaint();
-    // FIXME: Repaint container should never be null. crbug.com/363699
-    if (!repaintContainer)
-        repaintContainer = &m_renderView;
+

[ojan, 2014/04/23 02:07:31]

Nit: I'd remove the newlines before/after the assert.

+    ASSERT(repaintContainer);
 
     layer->repainter().repaintIncludingNonCompositingDescendants(repaintContainer);
 }