[CSS Typed OM] Delete obsolete number and length classes from Typed OM

third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl

Index: third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl
diff --git a/third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl b/third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl
index 5ab35b4c85988a6dbcf5bb38ba4fa05519e316c0..2a3deebd18348288f563beb8967ee569964e9eae 100644
--- a/third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl
+++ b/third_party/WebKit/Source/core/css/cssom/CSSPerspective.idl
@@ -3,10 +3,10 @@
 // found in the LICENSE file.
 
 [
-    Constructor(CSSLengthValue length),
+    Constructor(CSSNumericValue length),
     Exposed=(Window,PaintWorklet),
     RuntimeEnabled=CSSTypedOM,
     RaisesException=Constructor
 ] interface CSSPerspective : CSSTransformComponent {
-    readonly attribute CSSLengthValue length;
+    readonly attribute CSSNumericValue length;
 };