remove memoryinstrumentation

Source/core/platform/image-decoders/ImageDecoder.h

Index: Source/core/platform/image-decoders/ImageDecoder.h
diff --git a/Source/core/platform/image-decoders/ImageDecoder.h b/Source/core/platform/image-decoders/ImageDecoder.h
index 89ff44d9020644a02013366183e4ed7df77eef64..4a518a27c3534d9cb9a45be77ddab28821779835 100644
--- a/Source/core/platform/image-decoders/ImageDecoder.h
+++ b/Source/core/platform/image-decoders/ImageDecoder.h
@@ -48,6 +48,7 @@
 #include <wtf/RetainPtr.h>
 #endif
 #endif
+#include <wtf/PassOwnPtr.h>
 
 namespace WebCore {
 
@@ -116,7 +117,6 @@ namespace WebCore {
         unsigned duration() const { return m_duration; }
         FrameDisposalMethod disposalMethod() const { return m_disposalMethod; }
         bool premultiplyAlpha() const { return m_premultiplyAlpha; }
-        void reportMemoryUsage(MemoryObjectInfo*) const;
 
         void setHasAlpha(bool alpha);
         void setColorProfile(const ColorProfile&);
@@ -379,8 +379,6 @@ namespace WebCore {
         // and returns true. Otherwise returns false.
         virtual bool hotSpot(IntPoint&) const { return false; }
 
-        virtual void reportMemoryUsage(MemoryObjectInfo*) const;
-
         virtual void setMemoryAllocator(SkBitmap::Allocator* allocator)
         {
             // FIXME: this doesn't work for images with multiple frames.