[cssom][css-conditional][css-images] Switch CSS to use IDL namespace

css-conditional/Overview.bs

@@ -997,9 +997,9 @@ The CSS interface, and the supports() functio
 The {{CSS}} interface holds useful CSS-related functions that do not belong elsewhere.
 
 
-partial interface CSS {
-  static boolean supports(DOMString property, DOMString value);
-  static boolean supports(DOMString conditionText);
+partial namespace CSS {
+  boolean supports(DOMString property, DOMString value);
+  boolean supports(DOMString conditionText);
 };
 
 

css-images-4/Overview.bs

@@ -401,11 +401,13 @@ Using Out-Of-Document Sources: the ElementSources interface
 	The elementSources Map object provides this.
 
 	
-		partial interface CSS {
-			[SameObject] readonly attribute Map elementSources;
+		partial namespace CSS {
+			// [SameObject] readonly attribute Map elementSources;
 		};
 	
 
+	Issue(428): IDL namespaces don't support attributes yet.
+
 	Any entries in the elementSources map with a string key
 	and a value that is an object providing a paint source
 	are made available to the ''element()'' function.
@@ -573,7 +575,7 @@ Gradients
 
 Conic Gradients: the ''conic-gradient()'' notation
 
-	
+
 
 	A conic gradient starts by specifying the center of a circle,
 	similar to radial gradients,
@@ -729,7 +731,7 @@ Conic Gradient Examples
 	
 
 	
-		A conic gradient used to draw a simple pie chart. 
+		A conic gradient used to draw a simple pie chart.
 		The ''0deg'' color stop positions will be fixed up to be equal to the position of the color stop before them.
 		This will produce infinitesimal (invisible) transitions between the color stops with different colors,
 		effectively producing solid color segments.
@@ -768,7 +770,7 @@ Repeating Gradients: the ''repeating-linear-gradient()'', ''repeating-radial-gra
 		Basic repeating conic gradient:
 
 		background: repeating-conic-gradient(gold, #f06 20deg);
-		
+
 		
 	
 
@@ -780,13 +782,13 @@ Repeating Gradients: the ''repeating-linear-gradient()'', ''repeating-radial-gra
 		                    hsla(0,0%,100%,.2) 0deg 15deg,
 		                    hsla(0,0%,100%,0) 0deg 30deg
 		                ) #0ac;
-		
+
 		
 	
 
 	
 		Here repeating color stops with abrupt transitions are used to create a checkerboard:
-		
+
 		
 			background: repeating-conic-gradient(black 0deg 25%, white 0deg 50%);
 			background-size: 60px 60px;
@@ -845,7 +847,7 @@ Gradient Color-Stops
 			T: ,
 		N: 
 	
-	
+
 	
 		Are lengths useful in <>, for a given gradient circle?
 

cssom/Overview.bs

@@ -2629,15 +2629,15 @@ Utility APIs {#utility-apis}
 The CSS.escape() Method {#the-css.escape()-method}
 ------------------------------------------------------
 
-The CSS interface holds useful CSS-related functions that do not belong elsewhere.
+The CSS namespace holds useful CSS-related functions that do not belong elsewhere.
 
 
-interface CSS {
-  static DOMString escape(DOMString ident);
+namespace CSS {
+  DOMString escape(DOMString ident);
 };
 
 
-The escape(ident) method must return the result of invoking serialize an identifier of
+The escape(ident) operation must return the result of invoking serialize an identifier of
 ident.
 
 
@@ -2651,7 +2651,7 @@ The escape(ident) method must return the re
  var element = document.querySelector('a[href="#' + CSS.escape(fragment) + '"]');
 
 
-Specifications that define static functions on the {{CSS}} interface and want to
+Specifications that define operations on the {{CSS}} namespace and want to
 store some state should store the state on the current global
 object's associated Document.