Revert "Serialization of SkPictureImageFilter"

include/core/SkImage.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_DEFINED
 #define SkImage_DEFINED
 
@@ skipping 67 matching lines @@
     /**
      *  If the image has direct access to its pixels (i.e. they are in local
      *  RAM) return the (const) address of those pixels, and if not null, return
      *  the ImageInfo and rowBytes. The returned address is only valid while
      *  the image object is in scope.
      *
      *  On failure, returns NULL and the info and rowBytes parameters are
      *  ignored.
      */
     const void* peekPixels(SkImageInfo* info, size_t* rowBytes) const;
-
+    
     /**
      *  Encode the image's pixels and return the result as a new SkData, which
      *  the caller must manage (i.e. call unref() when they are done).
      *
      *  If the image type cannot be encoded, or the requested encoder type is
      *  not supported, this will return NULL.
      */
     SkData* encode(SkImageEncoder::Type t = SkImageEncoder::kPNG_Type,
                    int quality = 80) const;
 
@@ skipping 34 matching lines @@
      *  On failure, false will be returned, and bitmap will unmodified.
      */
     // On ice for now:
     // - should it respect the particular colortype/alphatype of the src
     // - should it have separate entrypoints for preallocated and not bitmaps?
     // - isn't it enough to allow the caller to draw() the image into a canvas?
     bool readPixels(SkBitmap* bitmap, const SkIRect* subset = NULL) const;
 };
 
 #endif