[css-device-adapt] Change 'interface CSSRule' to 'partial interface CSSRule' to avoid reference ambiguity (and since it is partial).

Author: dbaron

css-device-adapt/Overview.bs

@@ -811,7 +811,7 @@ The following rule type is added to the <code>CSSRule</code>
 interface. It provides identification for the new viewport rule.
 
 <pre class=idl>
-interface CSSRule {
+partial interface CSSRule {
     const unsigned short VIEWPORT_RULE = 15;
 };
 </pre>

mediaqueries/Overview.bs

@@ -19,7 +19,7 @@ Abstract: <a>Media Queries</a> allow authors to test and query values or feature
 Abstract:
 Abstract: Media Queries Level 4 describes the mechanism and syntax of media queries, media types, and media features. It extends and supersedes the features defined in Media Queries Level 3.
 Ignored Terms: min-resolution, max-resolution, none, view-mode, mediaText, DOMString
-Link Defaults: css-break-3 (property) break-inside, cssom (interface) CSSRule
+Link Defaults: css-break-3 (property) break-inside
 </pre>
 
 <h2 id="intro">