Revert 150342 "Implement filter primitive subregion for referenc..."

trunk/Source/core/platform/graphics/filters/FilterEffect.h

Index: trunk/Source/core/platform/graphics/filters/FilterEffect.h
===================================================================
--- trunk/Source/core/platform/graphics/filters/FilterEffect.h	(revision 150368)
+++ trunk/Source/core/platform/graphics/filters/FilterEffect.h	(working copy)
@@ -104,19 +104,6 @@
 
     virtual void determineAbsolutePaintRect();
 
-    // Mapping a rect forwards determines which which destination pixels a
-    // given source rect would affect. Mapping a rect backwards determines
-    // which pixels from the source rect would be required to fill a given
-    // destination rect. Note that these are not necessarily the inverse of
-    // each other. For example, for FEGaussianBlur, they are the same
-    // transformation.
-    virtual FloatRect mapRect(const FloatRect& rect, bool forward = true) { return rect; }
-    FloatRect mapRectRecursive(const FloatRect&);
-
-    // This is a recursive version of a backwards mapRect(), which also takes
-    // into account the filter primitive subregion of each effect.
-    FloatRect getSourceRect(const FloatRect& destRect, const FloatRect& clipRect);
-
     virtual FilterEffectType filterEffectType() const { return FilterEffectTypeUnknown; }
 
     virtual TextStream& externalRepresentation(TextStream&, int indention = 0) const;
@@ -154,8 +141,6 @@
     virtual void transformResultColorSpace(FilterEffect* in, const int) { in->transformResultColorSpace(m_operatingColorSpace); }
     void transformResultColorSpace(ColorSpace);
 
-    FloatRect determineFilterPrimitiveSubregion();
-
 protected:
     FilterEffect(Filter*);