Remove SkGrPixelRef

src/image/SkImage_Base.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImage_Base_DEFINED
 #define SkImage_Base_DEFINED
 
@@ skipping 43 matching lines @@
 
     virtual sk_sp<SkImage> onMakeSubset(const SkIRect&) const = 0;
 
     // If a ctx is specified, then only gpu-specific formats are requested.
     virtual SkData* onRefEncoded(GrContext*) const { return nullptr; }
 
     virtual bool onAsLegacyBitmap(SkBitmap*, LegacyBitmapMode) const;
 
     virtual bool onIsLazyGenerated() const { return false; }
 
-    // Return a bitmap suitable for passing to image-filters
-    // For now, that means wrapping textures into SkGrPixelRefs...
-    virtual bool asBitmapForImageFilters(SkBitmap* bitmap) const {
-        return this->getROPixels(bitmap, kAllow_CachingHint);
-    }
-
     // Call when this image is part of the key to a resourcecache entry. This allows the cache
     // to know automatically those entries can be purged when this SkImage deleted.
     void notifyAddedToCache() const {
         fAddedToCache.store(true);
     }
 
 private:
     // Set true by caches when they cache content that's derived from the current pixels.
     mutable SkAtomic<bool> fAddedToCache;
 
     typedef SkImage INHERITED;
 };
 
 static inline SkImage_Base* as_IB(SkImage* image) {
     return static_cast<SkImage_Base*>(image);
 }
 
 static inline SkImage_Base* as_IB(const sk_sp<SkImage>& image) {
     return static_cast<SkImage_Base*>(image.get());
 }
 
 static inline const SkImage_Base* as_IB(const SkImage* image) {
     return static_cast<const SkImage_Base*>(image);
 }
 
 #endif