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diff --git a/lib/dijit/layout/_LayoutWidget.js.uncompressed.js b/lib/dijit/layout/_LayoutWidget.js.uncompressed.js
new file mode 100644
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+++ b/lib/dijit/layout/_LayoutWidget.js.uncompressed.js
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+define("dijit/layout/_LayoutWidget", [
+	"dojo/_base/lang", // lang.mixin
+	"../_Widget",
+	"../_Container",
+	"../_Contained",
+	"dojo/_base/declare", // declare
+	"dojo/dom-class", // domClass.add domClass.remove
+	"dojo/dom-geometry", // domGeometry.marginBox
+	"dojo/dom-style", // domStyle.getComputedStyle
+	"dojo/_base/sniff", // has("ie")
+	"dojo/_base/window" // win.global
+], function(lang, _Widget, _Container, _Contained,
+	declare, domClass, domGeometry, domStyle, has, win){
+
+/*=====
+	var _Widget = dijit._Widget;
+	var _Container = dijit._Container;
+	var _Contained = dijit._Contained;
+=====*/
+
+	// module:
+	//		dijit/layout/_LayoutWidget
+	// summary:
+	//		_LayoutWidget Base class for a _Container widget which is responsible for laying out its children.
+	//		Widgets which mixin this code must define layout() to manage placement and sizing of the children.
+
+
+	return declare("dijit.layout._LayoutWidget", [_Widget, _Container, _Contained], {
+		// summary:
+		//		Base class for a _Container widget which is responsible for laying out its children.
+		//		Widgets which mixin this code must define layout() to manage placement and sizing of the children.
+
+		// baseClass: [protected extension] String
+		//		This class name is applied to the widget's domNode
+		//		and also may be used to generate names for sub nodes,
+		//		for example dijitTabContainer-content.
+		baseClass: "dijitLayoutContainer",
+
+		// isLayoutContainer: [protected] Boolean
+		//		Indicates that this widget is going to call resize() on its
+		//		children widgets, setting their size, when they become visible.
+		isLayoutContainer: true,
+
+		buildRendering: function(){
+			this.inherited(arguments);
+			domClass.add(this.domNode, "dijitContainer");
+		},
+
+		startup: function(){
+			// summary:
+			//		Called after all the widgets have been instantiated and their
+			//		dom nodes have been inserted somewhere under win.doc.body.
+			//
+			//		Widgets should override this method to do any initialization
+			//		dependent on other widgets existing, and then call
+			//		this superclass method to finish things off.
+			//
+			//		startup() in subclasses shouldn't do anything
+			//		size related because the size of the widget hasn't been set yet.
+
+			if(this._started){ return; }
+
+			// Need to call inherited first - so that child widgets get started
+			// up correctly
+			this.inherited(arguments);
+
+			// If I am a not being controlled by a parent layout widget...
+			var parent = this.getParent && this.getParent();
+			if(!(parent && parent.isLayoutContainer)){
+				// Do recursive sizing and layout of all my descendants
+				// (passing in no argument to resize means that it has to glean the size itself)
+				this.resize();
+
+				// Since my parent isn't a layout container, and my style *may be* width=height=100%
+				// or something similar (either set directly or via a CSS class),
+				// monitor when viewport size changes so that I can re-layout.
+				this.connect(win.global, 'onresize', function(){
+					// Using function(){} closure to ensure no arguments passed to resize().
+					this.resize();
+				});
+			}
+		},
+
+		resize: function(changeSize, resultSize){
+			// summary:
+			//		Call this to resize a widget, or after its size has changed.
+			// description:
+			//		Change size mode:
+			//			When changeSize is specified, changes the marginBox of this widget
+			//			and forces it to relayout its contents accordingly.
+			//			changeSize may specify height, width, or both.
+			//
+			//			If resultSize is specified it indicates the size the widget will
+			//			become after changeSize has been applied.
+			//
+			//		Notification mode:
+			//			When changeSize is null, indicates that the caller has already changed
+			//			the size of the widget, or perhaps it changed because the browser
+			//			window was resized.  Tells widget to relayout its contents accordingly.
+			//
+			//			If resultSize is also specified it indicates the size the widget has
+			//			become.
+			//
+			//		In either mode, this method also:
+			//			1. Sets this._borderBox and this._contentBox to the new size of
+			//				the widget.  Queries the current domNode size if necessary.
+			//			2. Calls layout() to resize contents (and maybe adjust child widgets).
+			//
+			// changeSize: Object?
+			//		Sets the widget to this margin-box size and position.
+			//		May include any/all of the following properties:
+			//	|	{w: int, h: int, l: int, t: int}
+			//
+			// resultSize: Object?
+			//		The margin-box size of this widget after applying changeSize (if
+			//		changeSize is specified).  If caller knows this size and
+			//		passes it in, we don't need to query the browser to get the size.
+			//	|	{w: int, h: int}
+
+			var node = this.domNode;
+
+			// set margin box size, unless it wasn't specified, in which case use current size
+			if(changeSize){
+				domGeometry.setMarginBox(node, changeSize);
+			}
+
+			// If either height or width wasn't specified by the user, then query node for it.
+			// But note that setting the margin box and then immediately querying dimensions may return
+			// inaccurate results, so try not to depend on it.
+			var mb = resultSize || {};
+			lang.mixin(mb, changeSize || {});	// changeSize overrides resultSize
+			if( !("h" in mb) || !("w" in mb) ){
+				mb = lang.mixin(domGeometry.getMarginBox(node), mb);	// just use domGeometry.marginBox() to fill in missing values
+			}
+
+			// Compute and save the size of my border box and content box
+			// (w/out calling domGeometry.getContentBox() since that may fail if size was recently set)
+			var cs = domStyle.getComputedStyle(node);
+			var me = domGeometry.getMarginExtents(node, cs);
+			var be = domGeometry.getBorderExtents(node, cs);
+			var bb = (this._borderBox = {
+				w: mb.w - (me.w + be.w),
+				h: mb.h - (me.h + be.h)
+			});
+			var pe = domGeometry.getPadExtents(node, cs);
+			this._contentBox = {
+				l: domStyle.toPixelValue(node, cs.paddingLeft),
+				t: domStyle.toPixelValue(node, cs.paddingTop),
+				w: bb.w - pe.w,
+				h: bb.h - pe.h
+			};
+
+			// Callback for widget to adjust size of its children
+			this.layout();
+		},
+
+		layout: function(){
+			// summary:
+			//		Widgets override this method to size and position their contents/children.
+			//		When this is called this._contentBox is guaranteed to be set (see resize()).
+			//
+			//		This is called after startup(), and also when the widget's size has been
+			//		changed.
+			// tags:
+			//		protected extension
+		},
+
+		_setupChild: function(/*dijit._Widget*/child){
+			// summary:
+			//		Common setup for initial children and children which are added after startup
+			// tags:
+			//		protected extension
+
+			var cls = this.baseClass + "-child "
+				+ (child.baseClass ? this.baseClass + "-" + child.baseClass : "");
+			domClass.add(child.domNode, cls);
+		},
+
+		addChild: function(/*dijit._Widget*/ child, /*Integer?*/ insertIndex){
+			// Overrides _Container.addChild() to call _setupChild()
+			this.inherited(arguments);
+			if(this._started){
+				this._setupChild(child);
+			}
+		},
+
+		removeChild: function(/*dijit._Widget*/ child){
+			// Overrides _Container.removeChild() to remove class added by _setupChild()
+			var cls = this.baseClass + "-child"
+					+ (child.baseClass ?
+						" " + this.baseClass + "-" + child.baseClass : "");
+			domClass.remove(child.domNode, cls);
+
+			this.inherited(arguments);
+		}
+	});
+});