Expand pixelref to return SkImageInfo and rowbytes

src/lazy/SkLazyPixelRef.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 SkLazyPixelRef_DEFINED
 #define SkLazyPixelRef_DEFINED
 
@@ skipping 42 matching lines @@
     static void ResetCacheStats() { gCacheHits = gCacheMisses = 0; }
 #endif
 
     // No need to flatten this object. When flattening an SkBitmap, SkOrderedWriteBuffer will check
     // the encoded data and write that instead.
     // Future implementations of SkFlattenableWriteBuffer will need to special case for
     // onRefEncodedData as well.
     SK_DECLARE_UNFLATTENABLE_OBJECT()
 
 protected:
-    virtual void* onLockPixels(SkColorTable**) SK_OVERRIDE;
+    virtual void* onLockPixels(SkImageInfo*, size_t* rowBytes,
+                               SkColorTable**) SK_OVERRIDE;
     virtual void onUnlockPixels() SK_OVERRIDE;
     virtual bool onLockPixelsAreWritable() const SK_OVERRIDE { return false; }
     virtual SkData* onRefEncodedData() SK_OVERRIDE;
     virtual bool onImplementsDecodeInto() SK_OVERRIDE;
     virtual bool onDecodeInto(int pow2, SkBitmap*) SK_OVERRIDE;
 
 private:
     bool                        fErrorInDecoding;
     SkData*                     fData;
     SkBitmapFactory::DecodeProc fDecodeProc;
     SkImageCache*               fImageCache;
     union {
         SkImageCache::ID        fCacheId;
         SkScaledImageCache::ID* fScaledCacheId;
     };
     size_t                      fRowBytes;
     SkImageInfo                 fLazilyCachedInfo;
 
 #if LAZY_CACHE_STATS
     static int32_t              gCacheHits;
     static int32_t              gCacheMisses;
 #endif
 
     // lazily initialized our cached info. Returns NULL on failure.
     const SkImage::Info* getCachedInfo();
-    void* lockScaledImageCachePixels();
-    void* lockImageCachePixels();
+    void* lockScaledImageCachePixels(SkImageInfo*, size_t* rowBytes);
+    void* lockImageCachePixels(SkImageInfo*, size_t* rowBytes);
 
 
     typedef SkPixelRef INHERITED;
 };
 
 #endif  // SkLazyPixelRef_DEFINED