Editor scrolling:

- Add a Screen Option to turn it on/off, and on()/off() methods from JS. Store the user preference.
- Fix delayed calls to resize() in the TinyMCE autoresize plugin.
See #28328.

git-svn-id: https://develop.svn.wordpress.org/trunk@29336 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/css/edit.css

@@ -355,12 +355,21 @@ td.plugin-title p {
 #content-resize-handle {
 	background: transparent url(../images/resize.gif) no-repeat scroll right bottom;
 	width: 12px;
+	cursor: row-resize;
 }
 
 .rtl #content-resize-handle {
 	background: transparent url(../images/resize-rtl.gif) no-repeat scroll left bottom;
 }
 
+.wp-editor-expand #content-resize-handle {
+	display: none;
+}
+
+#postdivrich #content {
+	resize: none;
+}
+
 #wp-word-count {
 	display: block;
 	padding: 2px 10px;