Simplify RenderLayer's handling of filters.

sky/engine/core/rendering/RenderLayerFilterInfo.h

Index: sky/engine/core/rendering/RenderLayerFilterInfo.h
diff --git a/sky/engine/core/rendering/RenderLayerFilterInfo.h b/sky/engine/core/rendering/RenderLayerFilterInfo.h
deleted file mode 100644
index bb7fa9e65311760d6bb7ac2763a36bfbde74f00b..0000000000000000000000000000000000000000
--- a/sky/engine/core/rendering/RenderLayerFilterInfo.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above
- *    copyright notice, this list of conditions and the following
- *    disclaimer.
- * 2. Redistributions in binary form must reproduce the above
- *    copyright notice, this list of conditions and the following
- *    disclaimer in the documentation and/or other materials
- *    provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef SKY_ENGINE_CORE_RENDERING_RENDERLAYERFILTERINFO_H_
-#define SKY_ENGINE_CORE_RENDERING_RENDERLAYERFILTERINFO_H_
-
-#include "sky/engine/core/dom/Element.h"
-#include "sky/engine/platform/geometry/LayoutRect.h"
-#include "sky/engine/platform/graphics/filters/FilterOperation.h"
-#include "sky/engine/wtf/HashMap.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "sky/engine/wtf/RefPtr.h"
-
-namespace blink {
-
-class FilterEffectRenderer;
-class FilterOperations;
-class RenderLayer;
-class RenderLayerFilterInfo;
-
-typedef HashMap<const RenderLayer*, RenderLayerFilterInfo*> RenderLayerFilterInfoMap;
-
-class RenderLayerFilterInfo {
-public:
-    static RenderLayerFilterInfo* filterInfoForRenderLayer(const RenderLayer*);
-    static RenderLayerFilterInfo* createFilterInfoForRenderLayerIfNeeded(RenderLayer*);
-    static void removeFilterInfoForRenderLayer(RenderLayer*);
-
-    FilterEffectRenderer* renderer() const { return m_renderer.get(); }
-    void setRenderer(PassRefPtr<FilterEffectRenderer>);
-
-    void updateReferenceFilterClients(const FilterOperations&);
-    void removeReferenceFilterClients();
-
-private:
-    RenderLayerFilterInfo(RenderLayer*);
-    virtual ~RenderLayerFilterInfo();
-
-    RefPtr<FilterEffectRenderer> m_renderer;
-
-    static RenderLayerFilterInfoMap* s_filterMap;
-    Vector<RefPtr<Element> > m_internalSVGReferences;
-};
-
-} // namespace blink
-
-
-#endif  // SKY_ENGINE_CORE_RENDERING_RENDERLAYERFILTERINFO_H_