Simplify flattening to just write enough to call the factory

include/effects/SkColorFilterImageFilter.h

 /*
  * Copyright 2012 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 SkColorFilterImageFilter_DEFINED
 #define SkColorFilterImageFilter_DEFINED
 
 #include "SkImageFilter.h"
 
 class SkColorFilter;
 
 class SK_API SkColorFilterImageFilter : public SkImageFilter {
 public:
     static SkColorFilterImageFilter* Create(SkColorFilter* cf,
                                             SkImageFilter* input = NULL,
                                             const CropRect* cropRect = NULL);
     virtual ~SkColorFilterImageFilter();
 
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorFilterImageFilter)
 
 protected:
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
     SkColorFilterImageFilter(SkReadBuffer& buffer);
+#endif
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
 
     virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
                                SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE;
 
     virtual bool asColorFilter(SkColorFilter**) const SK_OVERRIDE;
 
 private:
     SkColorFilterImageFilter(SkColorFilter* cf,
                              SkImageFilter* input,
                              const CropRect* cropRect);
     SkColorFilter*  fColorFilter;
 
     typedef SkImageFilter INHERITED;
 };
 
 #endif