Add CSS Overflow types (#714)

* add CSS Overflow types

* Add now-redundant removeTyped entries

1. SVGClipPathElement
2. SVGMaskElement

These have probably been redundant for some time, but `console.warn`
doesn't fail the build so they went unnoticed.

Author: saschanaz

baselines/dom.generated.d.ts

@@ -2972,11 +2972,11 @@ interface CSSStyleDeclaration {
     outlineOffset: string;
     outlineStyle: string;
     outlineWidth: string;
-    overflow: string | null;
+    overflow: string;
     overflowAnchor: string;
     overflowWrap: string;
-    overflowX: string | null;
-    overflowY: string | null;
+    overflowX: string;
+    overflowY: string;
     padding: string | null;
     paddingBottom: string | null;
     paddingLeft: string | null;
@@ -3142,6 +3142,7 @@ interface CSSStyleDeclaration {
     webkitFlexWrap: string;
     /** @deprecated */
     webkitJustifyContent: string;
+    webkitLineClamp: string;
     /** @deprecated */
     webkitMask: string;
     /** @deprecated */

inputfiles/idl/CSS Overflow.widl

@@ -0,0 +1,13 @@
+partial interface CSSStyleDeclaration {
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflowX;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflowY;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflow;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflowInline;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString overflowBlock;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString textOverflow;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString blockOverflow;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString lineClamp;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString webkitLineClamp;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString maxLines;
+  [CEReactions] attribute [TreatNullAs=EmptyString] CSSOMString continue;
+};

inputfiles/idlSources.json

@@ -44,6 +44,10 @@
         "url": "https://drafts.csswg.org/cssom-view/",
         "title": "CSSOM View"
     },
+    {
+        "url": "https://www.w3.org/TR/css-overflow-3/",
+        "title": "CSS Overflow"
+    },
     {
         "url": "https://drafts.csswg.org/css-scroll-anchoring/",
         "title": "CSS Scroll Anchoring"

inputfiles/removedTypes.json

@@ -69,6 +69,9 @@
                 "properties": {
                     "property": {
                         "hangingPunctuation": null,
+                        "blockOverflow": null,
+                        "continue": null,
+                        "lineClamp": null,
                         "maskBorder": null,
                         "maskBorderMode": null,
                         "maskBorderOutset": null,
@@ -79,6 +82,9 @@
                         "maskClip": null,
                         "maskMode": null,
                         "maskOrigin": null,
+                        "maxLines": null,
+                        "overflowBlock": null,
+                        "overflowInline": null,
                         "textAlignAll": null
                     }
                 }
@@ -130,11 +136,6 @@
                     }
                 }
             },
-            "SVGClipPathElement": {
-                "implements": [
-                    "SVGUnitTypes"
-                ]
-            },
             "SVGElementInstance": {
                 "properties": {
                     "property": {
@@ -174,11 +175,6 @@
                     "SVGUnitTypes"
                 ]
             },
-            "SVGMaskElement": {
-                "implements": [
-                    "SVGUnitTypes"
-                ]
-            },
             "SVGMatrix": null,
             "SVGPatternElement": {
                 "implements": [