 
     @beforeFirstNavigation = true
     @contentWindow = null
-    # Used to save some state upon deferred attachment.
-    # If <object> bindings is not available, we defer attachment.
-    # This state contains whether or not the attachment request was for
-    # newwindow.
-    @deferredAttachState = null
 
     # on* Event handlers.
     @on = {}

      unless @elementAttached
        guestViewInternal.destroyGuest guestInstanceId
        return
      @attachWindow guestInstanceId, false
    @pendingGuestCreation = true

  dispatchEvent: (webViewEvent) ->

  onAttach: (storagePartitionId) ->
    @attributes[webViewConstants.ATTRIBUTE_PARTITION].setValue storagePartitionId

  buildAttachParams: ->
    instanceId: @viewInstanceId
    userAgentOverride: @userAgentOverride
    # Attributes:
    allowtransparency: @attributes[webViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY].getValue()
    autosize: @attributes[webViewConstants.ATTRIBUTE_AUTOSIZE].getValue()
    maxheight: parseInt @attributes[webViewConstants.ATTRIBUTE_MAXHEIGHT].getValue() || 0
    maxwidth: parseInt @attributes[webViewConstants.ATTRIBUTE_MAXWIDTH].getValue() || 0
    minheight: parseInt @attributes[webViewConstants.ATTRIBUTE_MINHEIGHT].getValue() || 0
    minwidth: parseInt @attributes[webViewConstants.ATTRIBUTE_MINWIDTH].getValue() || 0
    src: @attributes[webViewConstants.ATTRIBUTE_SRC].getValue()
    httpreferrer: @attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER].getValue()

  attachWindow: (guestInstanceId) ->
    @guestInstanceId = guestInstanceId
    params = @buildAttachParams()

    unless @isPluginInRenderTree()
      return true

    guestViewInternal.attachGuest @internalInstanceId, @guestInstanceId, params, (w) => @contentWindow = w

# Registers browser plugin <object> custom element.
