static HttpResponseUnmanagedBufferElement()
 {
     if (HttpRuntime.UseIntegratedPipeline)
     {
         s_Pool = UnsafeIISMethods.MgdGetBufferPool(BufferingParams.INTEGRATED_MODE_BUFFER_SIZE);
     }
     else
     {
         s_Pool = UnsafeNativeMethods.BufferPoolGetPool(0x7c00, 0x40);
     }
 }