code: function contentObject( dialog, contentDefinition ) {
  		this._ = {
  			dialog: dialog
  		};
  
  		CKEDITOR.tools.extend( this, contentDefinition );
  	}
docs: This class is not really part of the API. It is the template of the
  objects representing content pages inside the
  CKEDITOR.dialog.definitionObject.
  
  CKEDITOR.on( 'dialogDefinition', function( evt ) {
  var definition = evt.data.definition;
  var content = definition.getContents( 'page1' );
  content.remove( 'textInput1' );
  // ...
  } );
  
  @private
  @class CKEDITOR.dialog.definition.contentObject
  @constructor Creates a contentObject class instance.