SkImage doesn't use props, so don't need to store it

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
 
 #include "SkAtomics.h"
 #include "SkImage.h"
 #include "SkSurface.h"
 
 #include <new>
 
 enum {
     kNeedNewImageUniqueID = 0
 };
 
 class SkImage_Base : public SkImage {
 public:
-    SkImage_Base(int width, int height, uint32_t uniqueID, const SkSurfaceProps* props);
+    SkImage_Base(int width, int height, uint32_t uniqueID);
     virtual ~SkImage_Base();
 
-    /**
-     *  If the props weren't know at constructor time, call this but only before the image is
-     *  ever released into the wild (since the props field must appear to be immutable).
-     */
-    void initWithProps(const SkSurfaceProps& props) {
-        SkASSERT(this->unique());   // only viewed by one thread
-        SkSurfaceProps* mutableProps = const_cast<SkSurfaceProps*>(&fProps);
-        SkASSERT(mutableProps != &props);   // check for self-assignment
-        mutableProps->~SkSurfaceProps();
-        new (mutableProps) SkSurfaceProps(props);
-    }
-
-    const SkSurfaceProps& props() const { return fProps; }
-
-    virtual const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const {
-        return nullptr;
-    }
+    virtual const void* onPeekPixels(SkImageInfo*, size_t* /*rowBytes*/) const { return nullptr; }
 
     // Default impl calls onDraw
     virtual bool onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes,
                               int srcX, int srcY) const;
 
     virtual GrTexture* peekTexture() const { return nullptr; }
 
     // return a read-only copy of the pixels. We promise to not modify them,
     // but only inspect them (or encode them).
     virtual bool getROPixels(SkBitmap*) const = 0;
 
     // Caller must call unref when they are done.
     virtual GrTexture* asTextureRef(GrContext*, SkImageUsageType) const = 0;
 
     virtual SkImage* onNewSubset(const SkIRect&) const = 0;
 
     virtual SkData* onRefEncoded() const { return nullptr; }
 
     virtual bool onAsLegacyBitmap(SkBitmap*, LegacyBitmapMode) const;
 
     virtual bool onIsLazyGenerated() const { return false; }
 
     // 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:
-    const SkSurfaceProps fProps;
-
     // 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 const SkImage_Base* as_IB(const SkImage* image) {
     return static_cast<const SkImage_Base*>(image);
 }
 
 #endif