LibWeb: Move DOMException from DOM/ to WebIDL/

Userland/Libraries/LibWeb/CSS/CSSRuleList.cpp

@@ -55,7 +55,7 @@ WebIDL::ExceptionOr<unsigned> CSSRuleList::insert_a_css_rule(Variant<StringView,
 
     // 2. If index is greater than length, then throw an IndexSizeError exception.
     if (index > length)
-        return DOM::IndexSizeError::create(global_object(), "CSS rule index out of bounds.");
+        return WebIDL::IndexSizeError::create(global_object(), "CSS rule index out of bounds.");
 
     // 3. Set new rule to the results of performing parse a CSS rule on argument rule.
     // NOTE: The insert-a-css-rule spec expects `rule` to be a string, but the CSSStyleSheet.insertRule()
@@ -72,7 +72,7 @@ WebIDL::ExceptionOr<unsigned> CSSRuleList::insert_a_css_rule(Variant<StringView,
 
     // 4. If new rule is a syntax error, throw a SyntaxError exception.
     if (!new_rule)
-        return DOM::SyntaxError::create(global_object(), "Unable to parse CSS rule.");
+        return WebIDL::SyntaxError::create(global_object(), "Unable to parse CSS rule.");
 
     // FIXME: 5. If new rule cannot be inserted into list at the zero-index position index due to constraints specified by CSS, then throw a HierarchyRequestError exception. [CSS21]
 
@@ -93,7 +93,7 @@ WebIDL::ExceptionOr<void> CSSRuleList::remove_a_css_rule(u32 index)
 
     // 2. If index is greater than or equal to length, then throw an IndexSizeError exception.
     if (index >= length)
-        return DOM::IndexSizeError::create(global_object(), "CSS rule index out of bounds.");
+        return WebIDL::IndexSizeError::create(global_object(), "CSS rule index out of bounds.");
 
     // 3. Set old rule to the indexth item in list.
     CSSRule& old_rule = m_rules[index];

Userland/Libraries/LibWeb/CSS/CSSStyleSheet.cpp

@@ -50,7 +50,7 @@ WebIDL::ExceptionOr<unsigned> CSSStyleSheet::insert_rule(StringView rule, unsign
 
     // 4. If parsed rule is a syntax error, return parsed rule.
     if (!parsed_rule)
-        return DOM::SyntaxError::create(global_object(), "Unable to parse CSS rule.");
+        return WebIDL::SyntaxError::create(global_object(), "Unable to parse CSS rule.");
 
     // FIXME: 5. If parsed rule is an @import rule, and the constructed flag is set, throw a SyntaxError DOMException.
 

Userland/Libraries/LibWeb/CSS/ResolvedCSSStyleDeclaration.cpp

@@ -538,14 +538,14 @@ Optional<StyleProperty> ResolvedCSSStyleDeclaration::property(PropertyID propert
 WebIDL::ExceptionOr<void> ResolvedCSSStyleDeclaration::set_property(PropertyID, StringView, StringView)
 {
     // 1. If the computed flag is set, then throw a NoModificationAllowedError exception.
-    return DOM::NoModificationAllowedError::create(global_object(), "Cannot modify properties in result of getComputedStyle()");
+    return WebIDL::NoModificationAllowedError::create(global_object(), "Cannot modify properties in result of getComputedStyle()");
 }
 
 // https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-removeproperty
 WebIDL::ExceptionOr<String> ResolvedCSSStyleDeclaration::remove_property(PropertyID)
 {
     // 1. If the computed flag is set, then throw a NoModificationAllowedError exception.
-    return DOM::NoModificationAllowedError::create(global_object(), "Cannot remove properties from result of getComputedStyle()");
+    return WebIDL::NoModificationAllowedError::create(global_object(), "Cannot remove properties from result of getComputedStyle()");
 }
 
 String ResolvedCSSStyleDeclaration::serialized() const