Bug 1768535 - Rename :-moz-modal-dialog to :modal r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D148751

layout/style/res/html.css

@@ -825,7 +825,7 @@ dialog:not([open]) {
   display: none;
 }
 
-dialog:-moz-modal-dialog {
+dialog:modal {
   -moz-top-layer: top !important;
   position: fixed;
   overflow: auto;

servo/components/style/gecko/non_ts_pseudo_class_list.rs

@@ -53,7 +53,7 @@ macro_rules! apply_non_ts_list {
                 ("-moz-devtools-highlighted", MozDevtoolsHighlighted, DEVTOOLS_HIGHLIGHTED, PSEUDO_CLASS_ENABLED_IN_UA_SHEETS),
                 ("-moz-styleeditor-transitioning", MozStyleeditorTransitioning, STYLEEDITOR_TRANSITIONING, PSEUDO_CLASS_ENABLED_IN_UA_SHEETS),
                 ("fullscreen", Fullscreen, FULLSCREEN, _),
-                ("-moz-modal-dialog", MozModalDialog, MODAL_DIALOG, PSEUDO_CLASS_ENABLED_IN_UA_SHEETS),
+                ("modal", Modal, MODAL_DIALOG, _),
                 ("-moz-topmost-modal", MozTopmostModal, TOPMOST_MODAL, PSEUDO_CLASS_ENABLED_IN_UA_SHEETS),
                 ("-moz-broken", MozBroken, BROKEN, _),
                 ("-moz-loading", MozLoading, LOADING, _),

servo/components/style/gecko/wrapper.rs

@@ -2140,7 +2140,7 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
             NonTSPseudoClass::MozDirAttrLTR |
             NonTSPseudoClass::MozDirAttrRTL |
             NonTSPseudoClass::MozDirAttrLikeAuto |
-            NonTSPseudoClass::MozModalDialog |
+            NonTSPseudoClass::Modal |
             NonTSPseudoClass::MozTopmostModal |
             NonTSPseudoClass::Active |
             NonTSPseudoClass::Hover |

testing/web-platform/meta/css/selectors/modal-pseudo-class.html.ini

@@ -1,3 +0,0 @@
-[modal-pseudo-class.html]
-  [:modal pseudo-class]
-    expected: FAIL