Remove flipForWritingMode.

sky/engine/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1397 matching lines @@
     addJsonObjectForRect(value.get(), "old", oldRect);
     addJsonObjectForRect(value.get(), "new", newRect);
     return value;
 }
 
 InvalidationReason RenderObject::invalidatePaintIfNeeded(const RenderLayerModelObject& paintInvalidationContainer, const LayoutRect& oldBounds, const LayoutPoint& oldLocation, const PaintInvalidationState& paintInvalidationState)
 {
     const LayoutRect& newBounds = previousPaintInvalidationRect();
     const LayoutPoint& newLocation = previousPositionFromPaintInvalidationContainer();
 
+    // FIXME(sky): Do we need this now that we don't have flipForWritingMode?
     // FIXME: PaintInvalidationState should not be required here, but the call to flipForWritingMode
     // in mapRectToPaintInvalidationBacking will give us the wrong results with it disabled.
     // crbug.com/393762
     ASSERT(newBounds == boundsRectForPaintInvalidation(&paintInvalidationContainer, &paintInvalidationState));
 
     TRACE_EVENT2(TRACE_DISABLED_BY_DEFAULT("blink.invalidation"), "RenderObject::invalidatePaintIfNeeded()",
         "object", this->debugName().ascii(),
         "info", jsonObjectForOldAndNewRects(oldBounds, newBounds));
 
     InvalidationReason invalidationReason = getPaintInvalidationReason(paintInvalidationContainer, oldBounds, oldLocation, newBounds, newLocation);
@@ skipping 1421 matching lines @@
 {
     if (object1) {
         const blink::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif