added a restore method, similar to a widget's destroy. Restores the meta content back to original value

Author: scottjehl

js/jquery.mobile.zoom.js

@@ -19,6 +19,10 @@ define( [ "jquery", "jquery.mobile.core" ], function( $ ) {
 		enable: function() {
 	        meta.attr( "content", enabledZoom );
 	        $.mobile.zoom.enabled = true;
+		},
+		restore: function() {
+	        meta.attr( "content", initialContent );
+	        $.mobile.zoom.enabled = true;
 		}
 	});
 

tests/unit/zoom/zoom.js

@@ -28,7 +28,15 @@
 
 	});
 
-
+	test( "Meta viewport content restore method restores it back to original value", function(){
+		$.mobile.zoom.disable();
+		ok( $( "meta[name=viewport]" ).attr( "content" ).match( /,maximum\-scale=1$/ ), "The meta viewport tag's content contains maximum-scale=1 after enable is called" );
+		
+		$.mobile.zoom.restore();
+		ok( $( "meta[name=viewport]" ).attr( "content" ) === defaultMeta, "The meta viewport tag's content matches its default state" );
+		
+	});
+	
 
 
 })(jQuery);