old_contents: define( [
  	"../core",
  	"../var/document",
  	"../var/documentElement",
  	"../var/support"
  ], function( jQuery, document, documentElement, support ) {
  
  ( function() {
  	var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
  		container = document.createElement( "div" ),
  		div = document.createElement( "div" );
  
  	// Finish early in limited (non-browser) environments
  	if ( !div.style ) {
  		return;
  	}
  
  	// Support: IE9-11 only
  	// Style of cloned element affects source element cloned (#8908)
  	div.style.backgroundClip = "content-box";
  	div.cloneNode( true ).style.backgroundClip = "";
  	support.clearCloneStyle = div.style.backgroundClip === "content-box";
  
  	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
  		"padding:0;margin-top:1px;position:absolute";
  	container.appendChild( div );
  
  	// Executing both pixelPosition & boxSizingReliable tests require only one layout
  	// so they're executed at the same time to save the second computation.
  	function computeStyleTests() {
  		div.style.cssText =
  			"box-sizing:border-box;" +
  			"position:relative;display:block;" +
  			"margin:auto;border:1px;padding:1px;" +
  			"top:1%;width:50%";
  		div.innerHTML = "";
  		documentElement.appendChild( container );
  
  		var divStyle = window.getComputedStyle( div );
  		pixelPositionVal = divStyle.top !== "1%";
  		reliableMarginLeftVal = divStyle.marginLeft === "2px";
  		boxSizingReliableVal = divStyle.width === "4px";
  
  		// Support: Android 4.0 - 4.3 only
  		// Some styles come back with percentage values, even though they shouldn't
  		div.style.marginRight = "50%";
  		pixelMarginRightVal = divStyle.marginRight === "4px";
  
  		documentElement.removeChild( container );
  	}
  
  	jQuery.extend( support, {
  		pixelPosition: function() {
  
  			// This test is executed only once but we still do memoizing
  			// since we can use the boxSizingReliable pre-computing.
  			// No need to check if the test was already performed, though.
  			computeStyleTests();
  			return pixelPositionVal;
  		},
  		boxSizingReliable: function() {
  			if ( boxSizingReliableVal == null ) {
  				computeStyleTests();
  			}
  			return boxSizingReliableVal;
  		},
  		pixelMarginRight: function() {
  
  			// Support: Android 4.0 - 4.3 only
  			// We're checking for boxSizingReliableVal here instead of pixelMarginRightVal
  			// since that compresses better and they're computed together anyway.
  			if ( boxSizingReliableVal == null ) {
  				computeStyleTests();
  			}
  			return pixelMarginRightVal;
  		},
  		reliableMarginLeft: function() {
  
  			// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44+
  			if ( boxSizingReliableVal == null ) {
  				computeStyleTests();
  			}
  			return reliableMarginLeftVal;
  		}
  	} );
  } )();
  
  return support;
  
  } );
  
new_contents: define( [
  	"../core",
  	"../var/document",
  	"../var/documentElement",
  	"../var/support"
  ], function( jQuery, document, documentElement, support ) {
  
  ( function() {
  	var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
  		container = document.createElement( "div" ),
  		div = document.createElement( "div" );
  
  	// Finish early in limited (non-browser) environments
  	if ( !div.style ) {
  		return;
  	}
  
  	// Support: IE9-11 only
  	// Style of cloned element affects source element cloned (#8908)
  	div.style.backgroundClip = "content-box";
  	div.cloneNode( true ).style.backgroundClip = "";
  	support.clearCloneStyle = div.style.backgroundClip === "content-box";
  
  	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
  		"padding:0;margin-top:1px;position:absolute";
  	container.appendChild( div );
  
  	// Executing both pixelPosition & boxSizingReliable tests require only one layout
  	// so they're executed at the same time to save the second computation.
  	function computeStyleTests() {
  
  		// This is a singleton, we need to execute it only once
  		if ( !div ) {
  			return;
  		}
  
  		div.style.cssText =
  			"box-sizing:border-box;" +
  			"position:relative;display:block;" +
  			"margin:auto;border:1px;padding:1px;" +
  			"top:1%;width:50%";
  		div.innerHTML = "";
  		documentElement.appendChild( container );
  
  		var divStyle = window.getComputedStyle( div );
  		pixelPositionVal = divStyle.top !== "1%";
  
  		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44+
  		reliableMarginLeftVal = divStyle.marginLeft === "2px";
  		boxSizingReliableVal = divStyle.width === "4px";
  
  		// Support: Android 4.0 - 4.3 only
  		// Some styles come back with percentage values, even though they shouldn't
  		div.style.marginRight = "50%";
  		pixelMarginRightVal = divStyle.marginRight === "4px";
  
  		documentElement.removeChild( container );
  
  		// Nullify the div so it wouldn't be stored in the memory and
  		// it will also be a sign that checks already performed
  		div = null;
  	}
  
  	jQuery.extend( support, {
  		pixelPosition: function() {
  			computeStyleTests();
  			return pixelPositionVal;
  		},
  		boxSizingReliable: function() {
  			computeStyleTests();
  			return boxSizingReliableVal;
  		},
  		pixelMarginRight: function() {
  			computeStyleTests();
  			return pixelMarginRightVal;
  		},
  		reliableMarginLeft: function() {
  			computeStyleTests();
  			return reliableMarginLeftVal;
  		}
  	} );
  } )();
  
  return support;
  
  } );
  
subject: improve support properties computation