Handle transformed descendants when drawing focus rings

Source/core/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 4527 matching lines @@
 
     if (!hasOverflowClip() && !hasControlClip()) {
         for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) {
             LayoutUnit top = max<LayoutUnit>(curr->lineTop(), curr->top());
             LayoutUnit bottom = min<LayoutUnit>(curr->lineBottom(), curr->top() + curr->height());
             LayoutRect rect(additionalOffset.x() + curr->x(), additionalOffset.y() + top, curr->width(), bottom - top);
             if (!rect.isEmpty())
                 rects.append(pixelSnappedIntRect(rect));
         }
 
-        for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) {
-            if (!curr->isText() && !curr->isListMarker() && curr->isBox()) {
-                RenderBox* box = toRenderBox(curr);
-                FloatPoint pos;
-                // FIXME: This doesn't work correctly with transforms.
-                if (box->layer())
-                    pos = curr->localToContainerPoint(FloatPoint(), paintContainer);
-                else
-                    pos = FloatPoint((additionalOffset.x() + box->x()).toFloat(), (additionalOffset.y() + box->y()).toFloat()); // FIXME: Snap offsets? crbug.com/350474
-                box->addFocusRingRects(rects, flooredLayoutPoint(pos), paintContainer);
-            }
-        }
+        addChildFocusRingRects(rects, additionalOffset, paintContainer);
     }
 
     if (inlineElementContinuation())
         inlineElementContinuation()->addFocusRingRects(rects, flooredLayoutPoint(additionalOffset + inlineElementContinuation()->containingBlock()->location() - location()), paintContainer);
 }
 
 void RenderBlock::computeSelfHitTestRects(Vector<LayoutRect>& rects, const LayoutPoint& layerOffset) const
 {
     RenderBox::computeSelfHitTestRects(rects, layerOffset);
 
@@ skipping 458 matching lines @@
 void RenderBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj) const
 {
     showRenderObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace WebCore