Revert of Add SkRasterPipeline blitter.

include/core/SkColorFilter.h

Index: include/core/SkColorFilter.h
diff --git a/include/core/SkColorFilter.h b/include/core/SkColorFilter.h
index 609550f6762409a8d0e9c29e08eb8931faf5fd59..7b2ee7845e1099c0cb549a1d58a88aa2becac973 100644
--- a/include/core/SkColorFilter.h
+++ b/include/core/SkColorFilter.h
@@ -16,7 +16,6 @@
 class GrContext;
 class GrFragmentProcessor;
 class SkBitmap;
-class SkRasterPipeline;
 
 /**
  *  ColorFilters are optional objects in the drawing pipeline. When present in
@@ -70,8 +69,6 @@
     virtual void filterSpan(const SkPMColor src[], int count, SkPMColor result[]) const = 0;
 
     virtual void filterSpan4f(const SkPM4f src[], int count, SkPM4f result[]) const;
-
-    bool appendStages(SkRasterPipeline*) const;
 
     enum Flags {
         /** If set the filter methods will not change the alpha channel of the colors.
@@ -171,8 +168,6 @@
 protected:
     SkColorFilter() {}
 
-    virtual bool onAppendStages(SkRasterPipeline*) const;
-
 private:
     /*
      *  Returns 1 if this is a single filter (not a composition of other filters), otherwise it