this->mFlags |= kIsSingleAllocationWithBuffer;
this->mFlags |= this->kIsSingleAllocationWithBuffer;
            Buffer( PRUnichar* aDataStart, PRUnichar* aDataEnd, PRUnichar* aStorageStart, PRUnichar* aStorageEnd, PRBool aIsSingleAllocation=PR_FALSE )                : nsXXXBufferHandle<PRUnichar>(aDataStart, aDataEnd, aStorageStart, aStorageEnd)              {                if ( aIsSingleAllocation )                  this->mFlags |= kIsSingleAllocationWithBuffer;              }