Make SkTDArray accessors const-friendly

src/core/SkPictureFlat.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 SkPictureFlat_DEFINED
 #define SkPictureFlat_DEFINED
 
@@ skipping 512 matching lines @@
         return flat;
     }
 
 protected:
     void (*fFlattenProc)(SkOrderedWriteBuffer&, const void*);
     void (*fUnflattenProc)(SkOrderedReadBuffer&, void*);
 
 private:
     void unflattenIntoArray(T* array) const {
         const int count = fData.count();
-        const SkFlatData** iter = fData.begin();
+        const SkFlatData* const* iter = fData.begin();
         for (int i = 0; i < count; ++i) {
             const SkFlatData* element = iter[i];
             int index = element->index() - 1;
             SkASSERT((unsigned)index < (unsigned)count);
             element->unflatten(&array[index], fUnflattenProc,
                                fController->getBitmapHeap(),
                                fController->getTypefacePlayback());
         }
     }
 
@@ skipping 122 matching lines @@
     static void flattenRegion(SkOrderedWriteBuffer& buffer, const void* obj) {
         buffer.getWriter32()->writeRegion(*(SkRegion*)obj);
     }
 
     static void unflattenRegion(SkOrderedReadBuffer& buffer, void* obj) {
         buffer.getReader32()->readRegion((SkRegion*)obj);
     }
 };
 
 #endif