Initial error handling code

include/core/SkMaskFilter.h

 
 /*
  * Copyright 2006 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 SkMaskFilter_DEFINED
@@ skipping 106 matching lines @@
      * current mask and returns the result using the dest param. Callers are
      * allowed to provide the same struct for both src and dest so each
      * implementation must accomodate that behavior.
      *
      *  The default impl calls filterMask with the src mask having no image,
      *  but subclasses may override this if they can compute the rect faster.
      */
     virtual void computeFastBounds(const SkRect& src, SkRect* dest) const;
 
     SkDEVCODE(virtual void toString(SkString* str) const = 0;)
-
+    SK_DEFINE_FLATTENABLE_TYPE(SkMaskFilter)
 protected:
     // empty for now, but lets get our subclass to remember to init us for the future
     SkMaskFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {}
 
     enum FilterReturn {
         kFalse_FilterReturn,
         kTrue_FilterReturn,
         kUnimplemented_FilterReturn
     };
 
@@ skipping 32 matching lines @@
      This method is not exported to java.
      */
     bool filterPath(const SkPath& devPath, const SkMatrix& devMatrix,
                     const SkRasterClip&, SkBounder*, SkBlitter* blitter,
                     SkPaint::Style style) const;
 
     typedef SkFlattenable INHERITED;
 };
 
 #endif