Rename/move counter rendering code to layout.

Source/core/rendering/RenderCounter.h

Index: Source/core/rendering/RenderCounter.h
diff --git a/Source/core/rendering/RenderCounter.h b/Source/core/rendering/RenderCounter.h
deleted file mode 100644
index 5dc3049b2e46218eecc696728c462c84da8998a6..0000000000000000000000000000000000000000
--- a/Source/core/rendering/RenderCounter.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
- * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. 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
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef RenderCounter_h
-#define RenderCounter_h
-
-#include "core/rendering/RenderText.h"
-#include "core/rendering/style/CounterContent.h"
-
-namespace blink {
-
-class CounterNode;
-
-class RenderCounter final : public RenderText {
-public:
-    RenderCounter(Document*, const CounterContent&);
-    virtual ~RenderCounter();
-    virtual void destroy() override;
-
-    static void destroyCounterNodes(RenderObject&);
-    static void destroyCounterNode(RenderObject&, const AtomicString& identifier);
-    static void rendererSubtreeAttached(RenderObject*);
-    static void rendererRemovedFromTree(RenderObject*);
-    static void rendererStyleChanged(RenderObject&, const RenderStyle* oldStyle, const RenderStyle* newStyle);
-
-    void updateCounter();
-
-protected:
-    virtual void willBeDestroyed() override;
-
-private:
-    virtual const char* renderName() const override;
-    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectCounter || RenderText::isOfType(type); }
-    virtual PassRefPtr<StringImpl> originalText() const override;
-
-    // Removes the reference to the CounterNode associated with this renderer.
-    // This is used to cause a counter display update when the CounterNode tree changes.
-    void invalidate();
-
-    CounterContent m_counter;
-    CounterNode* m_counterNode;
-    RenderCounter* m_nextForSameCounter;
-    friend class CounterNode;
-};
-
-DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderCounter, isCounter());
-
-} // namespace blink
-
-#ifndef NDEBUG
-// Outside the WebCore namespace for ease of invocation from gdb.
-void showCounterRendererTree(const blink::RenderObject*, const char* counterName = 0);
-#endif
-
-#endif // RenderCounter_h