Start removing the double-negative !ASSERT_DISABLED

Source/platform/image-decoders/ImageFrame.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. 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
@@ skipping 110 matching lines @@
     SkBitmap::Allocator* allocator() const { return m_allocator; }
     const SkBitmap& getSkBitmap() const { return m_bitmap; }
     // Returns true if the pixels changed, but the bitmap has not yet been notified.
     bool pixelsChanged() const { return m_pixelsChanged; }
 
     size_t requiredPreviousFrameIndex() const
     {
         ASSERT(m_requiredPreviousFrameIndexValid);
         return m_requiredPreviousFrameIndex;
     }
-#if !ASSERT_DISABLED
+#if ASSERT_ENABLED
     bool requiredPreviousFrameIndexValid() const { return m_requiredPreviousFrameIndexValid; }
 #endif
     void setHasAlpha(bool alpha);
     void setOriginalFrameRect(const IntRect& r) { m_originalFrameRect = r; }
     void setStatus(Status);
     void setDuration(unsigned duration) { m_duration = duration; }
     void setDisposalMethod(DisposalMethod disposalMethod) { m_disposalMethod = disposalMethod; }
     void setAlphaBlendSource(AlphaBlendSource alphaBlendSource) { m_alphaBlendSource = alphaBlendSource; }
     void setPremultiplyAlpha(bool premultiplyAlpha) { m_premultiplyAlpha = premultiplyAlpha; }
     void setMemoryAllocator(SkBitmap::Allocator* allocator) { m_allocator = allocator; }
     void setSkBitmap(const SkBitmap& bitmap) { m_bitmap = bitmap; }
     // The pixelsChanged flag needs to be set when the raw pixel data was directly modified
     // (e.g. through a pointer or setRGBA). The flag is usually set after a batch of changes was made.
     void setPixelsChanged(bool pixelsChanged) { m_pixelsChanged = pixelsChanged; }
 
     void setRequiredPreviousFrameIndex(size_t previousFrameIndex)
     {
         m_requiredPreviousFrameIndex = previousFrameIndex;
-#if !ASSERT_DISABLED
+#if ASSERT_ENABLED
         m_requiredPreviousFrameIndexValid = true;
 #endif
     }
 
     inline PixelData* getAddr(int x, int y)
     {
         return m_bitmap.getAddr32(x, y);
     }
 
     inline void setRGBA(int x, int y, unsigned r, unsigned g, unsigned b, unsigned a)
@@ skipping 66 matching lines @@
     AlphaBlendSource m_alphaBlendSource;
     bool m_premultiplyAlpha;
     // True if the pixels changed, but the bitmap has not yet been notified.
     bool m_pixelsChanged;
 
     // The frame that must be decoded before this frame can be decoded.
     // WTF::kNotFound if this frame doesn't require any previous frame.
     // This is used by ImageDecoder::clearCacheExceptFrame(), and will never
     // be read for image formats that do not have multiple frames.
     size_t m_requiredPreviousFrameIndex;
-#if !ASSERT_DISABLED
+#if ASSERT_ENABLED
     bool m_requiredPreviousFrameIndexValid;
 #endif
 };
 
 } // namespace WebCore
 
 #endif