remove DownSample imagefilter

src/ports/SkGlobalInitialization_default.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Sk1DPathEffect.h"
 #include "Sk2DPathEffect.h"
 #include "SkAlphaThresholdFilter.h"
@@ skipping 23 matching lines @@
 #include "SkLumaColorFilter.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkMatrixConvolutionImageFilter.h"
 #include "SkMergeImageFilter.h"
 #include "SkMorphologyImageFilter.h"
 #include "SkOffsetImageFilter.h"
 #include "SkPaintImageFilter.h"
 #include "SkPerlinNoiseShader.h"
 #include "SkPictureImageFilter.h"
 #include "SkTableColorFilter.h"
-#include "SkTestImageFilters.h"
 #include "SkTileImageFilter.h"
 #include "SkXfermodeImageFilter.h"
 
 // Security note:
 //
 // As new subclasses are added here, they should be reviewed by chrome security before they
 // support deserializing cross-process: chrome-security@google.com. SampleFilterFuzz.cpp should
 // also be amended to exercise the new subclass.
 //
 // See SkReadBuffer::isCrossProcess() and SkPicture::PictureIOSecurityPrecautionsEnabled()
@@ skipping 57 matching lines @@
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkPaintImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkPictureImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTileImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkXfermodeImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMagnifierImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMatrixConvolutionImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkOffsetImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkComposeImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMergeImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkColorFilterImageFilter)
-    SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDownSampleImageFilter)
     SkLightingImageFilter::InitializeFlattenables();
 }