Add nested SkPictureImageFilters to the GPU veto.

include/core/SkPicture.h

 /*
  * Copyright 2007 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 SkPicture_DEFINED
 #define SkPicture_DEFINED
 
@@ skipping 176 matching lines @@
     friend class SkEmptyPicture;
     template <typename> friend class SkMiniPicture;
 
     void serialize(SkWStream*, SkPixelSerializer*, SkRefCntSet* typefaces) const;
     static sk_sp<SkPicture> MakeFromStream(SkStream*, InstallPixelRefProc, SkTypefacePlayback*);
     friend class SkPictureData;
 
     virtual int numSlowPaths() const = 0;
     friend class SkPictureGpuAnalyzer;
     friend struct SkPathCounter;
+    friend class SkPictureImageFilter;
 
     // V35: Store SkRect (rather then width & height) in header
     // V36: Remove (obsolete) alphatype from SkColorTable
     // V37: Added shadow only option to SkDropShadowImageFilter (last version to record CLEAR)
     // V38: Added PictureResolution option to SkPictureImageFilter
     // V39: Added FilterLevel option to SkPictureImageFilter
     // V40: Remove UniqueID serialization from SkImageFilter.
     // V41: Added serialization of SkBitmapSource's filterQuality parameter
     // V42: Added a bool to SkPictureShader serialization to indicate did-we-serialize-a-picture?
     // V43: Added DRAW_IMAGE and DRAW_IMAGE_RECT opt codes to serialized data
@@ skipping 18 matching lines @@
                                         const SkPictureData*,
                                         const SkReadBuffer* buffer);
 
     SkPictInfo createHeader() const;
     SkPictureData* backport() const;
 
     mutable uint32_t fUniqueID;
 };
 
 #endif