Revert "Use V8 implementation of ArrayBuffer in Blink."

Source/wtf/ArrayBufferContents.h

Index: Source/wtf/ArrayBufferContents.h
diff --git a/Source/wtf/ArrayBufferContents.h b/Source/wtf/ArrayBufferContents.h
index 985cf907d84e4ac5fd531b928d93b3990cfa2a92..8d5b8650b2bfeef18b66f144aa789f3d5653ecff 100644
--- a/Source/wtf/ArrayBufferContents.h
+++ b/Source/wtf/ArrayBufferContents.h
@@ -44,11 +44,6 @@ public:
     ArrayBufferContents();
     ArrayBufferContents(unsigned numElements, unsigned elementByteSize, ArrayBufferContents::InitializationPolicy);
 
-    // Use with care. data must be allocated with allocateMemory.
-    // ArrayBufferContents will take ownership of the data and free it (using freeMemorY)
-    // upon destruction.
-    ArrayBufferContents(void* data, unsigned sizeInBytes);
-
     ~ArrayBufferContents();
 
     void clear();
@@ -61,9 +56,6 @@ public:
 
     void transfer(ArrayBufferContents& other);
 
-    static bool allocateMemory(size_t, InitializationPolicy, void*& data);
-    static void freeMemory(void* data);
-
 private:
     void* m_data;
     unsigned m_sizeInBytes;