Minor clode cleanup

src/core/SkBitmapHeap.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 SkBitmapHeap_DEFINED
 #define SkBitmapHeap_DEFINED
 
@@ skipping 93 matching lines @@
      * Our LRU implementation assumes that inserts into the external storage are consumed in the
      * order that they are inserted (i.e. SkPipe). This ensures that we don't need to query the
      * external storage to see if a slot in the heap is eligible to be overwritten.
      *
      * @param externalStorage  The class responsible for storing the bitmaps inserted into the heap
      * @param heapSize  The maximum size of the heap. Because of the sequential limitation imposed
      *   by our LRU implementation we can guarantee that the heap will never grow beyond this size.
      */
     SkBitmapHeap(ExternalStorage* externalStorage, int32_t heapSize = UNLIMITED_SIZE);
 
-    ~SkBitmapHeap();
+    virtual ~SkBitmapHeap();
 
     /**
      * Makes a shallow copy of all bitmaps currently in the heap and returns them as an array. The
      * array indices match their position in the heap.
      *
      * @return  a ptr to an array of bitmaps or NULL if external storage is being used.
      */
     SkTRefArray<SkBitmap>* extractBitmaps() const;
 
     /**
@@ skipping 173 matching lines @@
     const int32_t fOwnerCount;
     size_t fBytesAllocated;
 
     bool fDeferAddingOwners;
     SkTDArray<int> fDeferredEntries;
 
     typedef SkBitmapHeapReader INHERITED;
 };
 
 #endif // SkBitmapHeap_DEFINED