[css-contain-2] Update test coverage info

Author: frivoal

css-contain-2/Overview.bs

@@ -104,7 +104,7 @@ Strong Containment: the 'contain' property</h2>
 	contain-paint-size-002.html
 	contain-paint-size-003.html
 
-	contain-chrome-crash-001.html
+	contain-chrome-thcrash-001.html
 	</wpt>
 
 	<p class=all-media>User Agents are expected to support this property on all media, including non-visual ones.</p>
@@ -217,6 +217,7 @@ Strong Containment: the 'contain' property</h2>
 				contain-size-scrollbars-001.html
 				contain-size-scrollbars-002.html
 				contain-size-scrollbars-003.html
+				contain-size-scrollbars-004.html
 
 				contain-layout-size-003.html
 				contain-paint-size-001.html
@@ -485,6 +486,7 @@ Size Containment</h3>
 		contain-size-scrollbars-001.html
 		contain-size-scrollbars-002.html
 		contain-size-scrollbars-003.html
+		contain-size-scrollbars-004.html
 
 		contain-size-button-001.html
 		contain-size-flexbox-001.html