Move all filters-related files from core/platform to platform.

Source/core/platform/graphics/filters/FEDropShadow.h

Index: Source/core/platform/graphics/filters/FEDropShadow.h
diff --git a/Source/core/platform/graphics/filters/FEDropShadow.h b/Source/core/platform/graphics/filters/FEDropShadow.h
deleted file mode 100644
index 9d43f9b8ad05b37c32c6aa90198c613789539d4e..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/filters/FEDropShadow.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) Research In Motion Limited 2011. All rights reserved.
- * Copyright (C) 2013 Google 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 FEDropShadow_h
-#define FEDropShadow_h
-
-#include "platform/graphics/Color.h"
-#include "platform/graphics/filters/Filter.h"
-#include "platform/graphics/filters/FilterEffect.h"
-
-namespace WebCore {
-
-class FEDropShadow : public FilterEffect {
-public:
-    static PassRefPtr<FEDropShadow> create(Filter*, float, float, float, float, const Color&, float);
-
-    float stdDeviationX() const { return m_stdX; }
-    void setStdDeviationX(float stdX) { m_stdX = stdX; }
-
-    float stdDeviationY() const { return m_stdY; }
-    void setStdDeviationY(float stdY) { m_stdY = stdY; }
-
-    float dx() const { return m_dx; }
-    void setDx(float dx) { m_dx = dx; }
-
-    float dy() const { return m_dy; }
-    void setDy(float dy) { m_dy = dy; }
-
-    Color shadowColor() const { return m_shadowColor; }
-    void setShadowColor(const Color& shadowColor) { m_shadowColor = shadowColor; }
-
-    float shadowOpacity() const { return m_shadowOpacity; }
-    void setShadowOpacity(float shadowOpacity) { m_shadowOpacity = shadowOpacity; }
-
-    static float calculateStdDeviation(float);
-
-    virtual void determineAbsolutePaintRect();
-    virtual FloatRect mapRect(const FloatRect&, bool forward = true) OVERRIDE FINAL;
-
-    virtual TextStream& externalRepresentation(TextStream&, int indention) const;
-    virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
-
-private:
-    FEDropShadow(Filter*, float, float, float, float, const Color&, float);
-
-    virtual void applySoftware() OVERRIDE;
-
-    float m_stdX;
-    float m_stdY;
-    float m_dx;
-    float m_dy;
-    Color m_shadowColor;
-    float m_shadowOpacity;
-};
-
-} // namespace WebCore
-
-#endif // FEDropShadow_h