Revert of add compose-colorfilter

include/core/SkColorFilter.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkColorFilter_DEFINED
@@ skipping 105 matching lines @@
     */
     static SkColorFilter* CreateModeFilter(SkColor c, SkXfermode::Mode mode);
 
     /** Create a colorfilter that multiplies the RGB channels by one color, and
         then adds a second color, pinning the result for each component to
         [0..255]. The alpha components of the mul and add arguments
         are ignored.
     */
     static SkColorFilter* CreateLightingFilter(SkColor mul, SkColor add);
 
-    /** Construct a colorfilter whose effect is to first apply the inner filter and then apply
-     *  the outer filter to the result of the inner's.
-     *  The reference counts for outer and inner are incremented.
-     */
-    static SkColorFilter* CreateComposeFilter(SkColorFilter* outer, SkColorFilter* inner);
-
     /** A subclass may implement this factory function to work with the GPU backend. If the return
         is non-NULL then the caller owns a ref on the returned object.
      */
     virtual GrFragmentProcessor* asFragmentProcessor(GrContext*) const;
 
     SK_TO_STRING_PUREVIRT()
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
     SK_DEFINE_FLATTENABLE_TYPE(SkColorFilter)
 
 protected:
     SkColorFilter() {}
 
 private:
     typedef SkFlattenable INHERITED;
 };
 
 #endif