[cssom] Assume that 'float' is supported

Author: Simon Pieters

cssom/Overview.html

@@ -2161,6 +2161,7 @@ <h4 id="the-cssstyledeclaration-interface"><span class="secno">6.5.1 </span>The
   -->[TreatNullAs=EmptyString] optional DOMString priority = "");
   DOMString <a href="#dom-cssstyledeclaration-removeproperty" title="dom-CSSStyleDeclaration-removeProperty">removeProperty</a>(DOMString property);
   readonly attribute <a href="#cssrule">CSSRule</a>? <a href="#dom-cssstyledeclaration-length" title="dom-CSSStyleDeclaration-length">parentRule</a>;
+  [TreatNullAs=EmptyString] attribute DOMString <a href="#dom-cssstyledeclaration-cssfloat" title="dom-CSSStyleDeclaration-cssFloat">cssFloat</a>;
 };</pre>
 
 <p>The object's <a class="external" href="http://dev.w3.org/2006/webapi/WebIDL/#dfn-supported-property-indices">supported property indices</a> are the numbers in the range zero to one less than the number of declarations in
@@ -2255,12 +2256,6 @@ <h4 id="the-cssstyledeclaration-interface"><span class="secno">6.5.1 </span>The
 <p>The <dfn id="dom-cssstyledeclaration-parentrule" title="dom-CSSStyleDeclaration-parentRule"><code>parentRule</code></dfn> attribute must return the <code><a href="#cssrule">CSSrule</a></code> object the
 <code><a href="#cssstyledeclaration">CSSStyleDeclaration</a></code> is object is associated with or null if it is not associated with a <code><a href="#cssrule">CSSrule</a></code> object.</p>
 
-<p>If the user agent supports the 'float' CSS property, the following partial interface applies.</p>
-
-<pre class="idl">partial interface <a href="#cssstyledeclaration">CSSStyleDeclaration</a> {
-  [TreatNullAs=EmptyString] attribute DOMString <a href="#dom-cssstyledeclaration-cssfloat" title="dom-CSSStyleDeclaration-cssFloat">cssFloat</a>;
-};</pre>
-
 <p>The <dfn id="dom-cssstyledeclaration-cssfloat" title="dom-CSSStyleDeclaration-cssFloat"><code>cssFloat</code></dfn>
 attribute, on getting, must return the result of invoking
 <code title="dom-CSSStyleDeclaration-getPropertyValue"><a href="#dom-cssstyledeclaration-getpropertyvalue">getPropertyValue()</a></code> with

cssom/Overview.src.html

@@ -2092,6 +2092,7 @@ <h4>The <code title>CSSStyleDeclaration</code> Interface</h4>
   -->[TreatNullAs=EmptyString] optional DOMString priority = "");
   DOMString <span title=dom-CSSStyleDeclaration-removeProperty>removeProperty</span>(DOMString property);
   readonly attribute <span>CSSRule</span>? <span title=dom-CSSStyleDeclaration-length>parentRule</span>;
+  [TreatNullAs=EmptyString] attribute DOMString <span title=dom-CSSStyleDeclaration-cssFloat>cssFloat</span>;
 };</pre>
 
 <p>The object's <span data-anolis-spec=webidl>supported property indices</span> are the numbers in the range zero to one less than the number of declarations in
@@ -2186,12 +2187,6 @@ <h4>The <code title>CSSStyleDeclaration</code> Interface</h4>
 <p>The <dfn title=dom-CSSStyleDeclaration-parentRule><code>parentRule</code></dfn> attribute must return the <code>CSSrule</code> object the
 <code>CSSStyleDeclaration</code> is object is associated with or null if it is not associated with a <code>CSSrule</code> object.</p>
 
-<p>If the user agent supports the 'float' CSS property, the following partial interface applies.</p>
-
-<pre class=idl>partial interface <span>CSSStyleDeclaration</span> {
-  [TreatNullAs=EmptyString] attribute DOMString <span title=dom-CSSStyleDeclaration-cssFloat>cssFloat</span>;
-};</pre>
-
 <p>The <dfn title=dom-CSSStyleDeclaration-cssFloat><code>cssFloat</code></dfn>
 attribute, on getting, must return the result of invoking
 <code title=dom-CSSStyleDeclaration-getPropertyValue>getPropertyValue()</code> with