Factor painting code from RenderBlock into BlockPainter.

Source/core/rendering/RenderFlexibleBox.cpp

Index: Source/core/rendering/RenderFlexibleBox.cpp
diff --git a/Source/core/rendering/RenderFlexibleBox.cpp b/Source/core/rendering/RenderFlexibleBox.cpp
index d634f95ab15665f8da3012c3a48ab5922256469f..3a948cb7201ad76ee5b9b8a7be06f21007b20e34 100644
--- a/Source/core/rendering/RenderFlexibleBox.cpp
+++ b/Source/core/rendering/RenderFlexibleBox.cpp
@@ -32,6 +32,7 @@
 #include "core/rendering/RenderFlexibleBox.h"
 
 #include "core/frame/UseCounter.h"
+#include "core/paint/BlockPainter.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/TextAutosizer.h"
@@ -282,7 +283,7 @@ void RenderFlexibleBox::appendChildFrameRects(ChildFrameRects& childFrameRects)
 void RenderFlexibleBox::paintChildren(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     for (RenderBox* child = m_orderIterator.first(); child; child = m_orderIterator.next())
-        paintChildAsInlineBlock(child, paintInfo, paintOffset);
+        BlockPainter(*this).paintChildAsInlineBlock(child, paintInfo, paintOffset);
 }
 
 void RenderFlexibleBox::repositionLogicalHeightDependentFlexItems(Vector<LineContext>& lineContexts)