Fix crashes while displaying large animated GIFs. Our old understanding of t...

webkit/port/platform/image-decoders/ImageDecoder.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 120 matching lines @@
         bmp.setConfig(SkBitmap::kARGB_8888_Config, other.width(),
                       other.height(), otherBmp.rowBytes());
         bmp.allocPixels();
         if (width() > 0 && height() > 0) {
             memcpy(bmp.getAddr32(0, 0),
                    otherBmp.getAddr32(0, 0),
                    otherBmp.rowBytes() * height());
         }
     }
 
-    SkBitmap& bitmap() { return m_bitmapRef->bitmap(); }
-    const SkBitmap& bitmap() const { return m_bitmapRef->bitmap(); }
+    NativeImageSkia& bitmap() { return m_bitmapRef->bitmap(); }
+    const NativeImageSkia& bitmap() const { return m_bitmapRef->bitmap(); }
 
     // Must be called before any pixels are written. Will return true on
     // success, false if the memory allocation fails.
     bool setSize(int width, int height) {
         // This function should only be called once, it will leak memory
         // otherwise.
         SkBitmap& bmp = bitmap();
         ASSERT(bmp.width() == 0 && bmp.height() == 0);
         bmp.setConfig(SkBitmap::kARGB_8888_Config, width, height);
         if (!bmp.allocPixels())
@@ skipping 141 matching lines @@
         return false;
     }
 
     IntSize m_size;
     bool m_sizeAvailable;
 };
 
 }
 
 #endif