LibURL+LibWeb: Do not percent decode in password/username getters

Doing it is not part of the spec. Whenever needed, the spec will
explicitly percent decode the username and password.

This fixes some URL WPT tests.

Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp

@@ -41,8 +41,8 @@ bool url_matches_about_blank(URL::URL const& url)
     // A URL matches about:blank if its scheme is "about", its path contains a single string "blank", its username and password are the empty string, and its host is null.
     return url.scheme() == "about"sv
         && url.serialize_path() == "blank"sv
-        && url.raw_username().is_empty()
-        && url.raw_password().is_empty()
+        && url.username().is_empty()
+        && url.password().is_empty()
         && url.host().has<Empty>();
 }
 
@@ -53,8 +53,8 @@ bool url_matches_about_srcdoc(URL::URL const& url)
     return url.scheme() == "about"sv
         && url.serialize_path() == "srcdoc"sv
         && !url.query().has_value()
-        && url.raw_username().is_empty()
-        && url.raw_password().is_empty()
+        && url.username().is_empty()
+        && url.password().is_empty()
         && url.host().has<Empty>();
 }
 

Userland/Libraries/LibWeb/HTML/HTMLHyperlinkElementUtils.cpp

@@ -97,7 +97,7 @@ String HTMLHyperlinkElementUtils::username() const
         return String {};
 
     // 3. Return this element's url's username.
-    return m_url->username().release_value();
+    return m_url->username();
 }
 
 // https://html.spec.whatwg.org/multipage/links.html#dom-hyperlink-username
@@ -134,7 +134,7 @@ String HTMLHyperlinkElementUtils::password() const
         return String {};
 
     // 4. Return url's password.
-    return url->password().release_value();
+    return url->password();
 }
 
 // https://html.spec.whatwg.org/multipage/links.html#dom-hyperlink-password

Userland/Libraries/LibWeb/HTML/History.cpp

@@ -135,8 +135,8 @@ bool can_have_its_url_rewritten(DOM::Document const& document, URL::URL const& t
     // 2. If targetURL and documentURL differ in their scheme, username, password, host, or port components,
     //    then return false.
     if (target_url.scheme() != document_url.scheme()
-        || target_url.raw_username() != document_url.raw_username()
-        || target_url.raw_password() != document_url.raw_password()
+        || target_url.username() != document_url.username()
+        || target_url.password() != document_url.password()
         || target_url.host() != document_url.host()
         || target_url.port() != document_url.port())
         return false;