Fix SkTileImageFilter clipping/cropRect interaction issue

include/core/SkImageFilter.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImageFilter_DEFINED
 #define SkImageFilter_DEFINED
 
@@ skipping 28 matching lines @@
             kHasLeft_CropEdge   = 0x01,
             kHasTop_CropEdge    = 0x02,
             kHasRight_CropEdge  = 0x04,
             kHasBottom_CropEdge = 0x08,
             kHasAll_CropEdge    = 0x0F,
         };
         CropRect() {}
         explicit CropRect(const SkRect& rect, uint32_t flags = kHasAll_CropEdge) : fRect(rect), fFlags(flags) {}
         uint32_t flags() const { return fFlags; }
         const SkRect& rect() const { return fRect; }
+#ifndef SK_IGNORE_TO_STRING
+        void toString(SkString* str) const;
+#endif
     private:
         SkRect fRect;
         uint32_t fFlags;
     };
 
     // This cache maps from (filter's unique ID + CTM + clipBounds + src bitmap generation ID) to
     // (result, offset).
     class Cache : public SkRefCnt {
     public:
         struct Key;
@@ skipping 305 matching lines @@
  */
 #define SK_IMAGEFILTER_UNFLATTEN_COMMON(localVar, expectedCount)    \
     Common localVar;                                                \
     do {                                                            \
         if (!localVar.unflatten(buffer, expectedCount)) {           \
             return NULL;                                            \
         }                                                           \
     } while (0)
 
 #endif