Factor SVG root inline box paint code into SVGRootInlineBoxPainter

Source/core/paint/SVGRootInlineBoxPainter.cpp

Index: Source/core/paint/SVGRootInlineBoxPainter.cpp
diff --git a/Source/core/paint/SVGRootInlineBoxPainter.cpp b/Source/core/paint/SVGRootInlineBoxPainter.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0e619dc7e6c63fe6bdf373e4adee244a3415f220
--- /dev/null
+++ b/Source/core/paint/SVGRootInlineBoxPainter.cpp
@@ -0,0 +1,43 @@
+// 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 "config.h"
+#include "core/paint/SVGRootInlineBoxPainter.h"
+
+#include "core/paint/SVGInlineTextBoxPainter.h"
+#include "core/rendering/PaintInfo.h"
+#include "core/rendering/svg/SVGInlineFlowBox.h"
+#include "core/rendering/svg/SVGInlineTextBox.h"
+#include "core/rendering/svg/SVGRenderingContext.h"
+#include "core/rendering/svg/SVGRootInlineBox.h"
+#include "platform/graphics/GraphicsContextStateSaver.h"
+
+namespace blink {
+
+void SVGRootInlineBoxPainter::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
+
+    bool isPrinting = m_svgRootInlineBox.renderer().document().printing();
+    bool hasSelection = !isPrinting && m_svgRootInlineBox.selectionState() != RenderObject::SelectionNone;
+
+    PaintInfo childPaintInfo(paintInfo);
+    if (hasSelection) {
+        for (InlineBox* child = m_svgRootInlineBox.firstChild(); child; child = child->nextOnLine()) {
+            if (child->isSVGInlineTextBox())
+                SVGInlineTextBoxPainter(*toSVGInlineTextBox(child)).paintSelectionBackground(childPaintInfo);
+            else if (child->isSVGInlineFlowBox())
+                toSVGInlineFlowBox(child)->paintSelectionBackground(childPaintInfo);
+        }
+    }
+
+    GraphicsContextStateSaver stateSaver(*paintInfo.context);
+    SVGRenderingContext renderingContext(&m_svgRootInlineBox.renderer(), paintInfo);
+    if (renderingContext.isRenderingPrepared()) {
+        for (InlineBox* child = m_svgRootInlineBox.firstChild(); child; child = child->nextOnLine())
+            child->paint(paintInfo, paintOffset, 0, 0);
+    }
+}
+
+} // namespace blink