Rewrite references to "wtf/" to "platform/wtf/" in core/paint.

third_party/WebKit/Source/core/paint/SVGRootPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/SVGRootPainter.h"
 
 #include "core/layout/svg/LayoutSVGRoot.h"
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/paint/BoxClipper.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintInfo.h"
 #include "core/paint/PaintTiming.h"
 #include "core/paint/SVGPaintContext.h"
 #include "core/svg/SVGSVGElement.h"
-#include "wtf/Optional.h"
+#include "platform/wtf/Optional.h"
 
 namespace blink {
 
 IntRect SVGRootPainter::PixelSnappedSize(
     const LayoutPoint& paint_offset) const {
   return PixelSnappedIntRect(paint_offset, layout_svg_root_.size());
 }
 
 AffineTransform SVGRootPainter::TransformToPixelSnappedBorderBox(
     const LayoutPoint& paint_offset) const {
@@ skipping 47 matching lines @@
 
   BoxPainter(layout_svg_root_)
       .PaintChildren(paint_context.GetPaintInfo(), LayoutPoint());
 
   PaintTiming& timing = PaintTiming::From(
       layout_svg_root_.GetNode()->GetDocument().TopDocument());
   timing.MarkFirstContentfulPaint();
 }
 
 }  // namespace blink