Remove useless parameter from TextEncoder constructor

Differential Revision: https://phabricator.services.mozilla.com/D167488

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1811347
gecko-commit: b8d5cc5c223ff571b04163dfd91a0d09c0e0b599
gecko-reviewers: emk, webdriver-reviewers, extension-reviewers, credential-management-reviewers, dimi, jdescottes, willdurand

resources/chromium/nfc-mock.js

@@ -50,7 +50,7 @@ function toByteArray(data) {
     tmpData = JSON.stringify(tmpData);
 
   if (typeof tmpData === 'string')
-    byteArray = new TextEncoder('utf-8').encode(tmpData);
+    byteArray = new TextEncoder().encode(tmpData);
 
   return byteArray;
 }

web-nfc/resources/nfc-helpers.js

@@ -47,7 +47,7 @@ function nfc_test(func, name, properties) {
 }
 
 const test_text_data = 'Test text data.';
-const test_text_byte_array = new TextEncoder('utf-8').encode(test_text_data);
+const test_text_byte_array = new TextEncoder().encode(test_text_data);
 const test_number_data = 42;
 const test_json_data = {level: 1, score: 100, label: 'Game'};
 const test_url_data = 'https://w3c.github.io/web-nfc/';
@@ -124,7 +124,7 @@ function createTextRecord(data, encoding, lang) {
 
 function createMimeRecordFromJson(json) {
   return createRecord(
-      'mime', new TextEncoder('utf-8').encode(JSON.stringify(json)),
+      'mime', new TextEncoder().encode(JSON.stringify(json)),
       test_record_id, 'application/json');
 }
 

webauthn/createcredential-minpinlength.https.html

@@ -25,7 +25,7 @@
     // The extension results will be in the authenticator outputs.
     assert_true(new Uint8Array(credential.response.getAuthenticatorData())
                     .toString()
-                    .includes(new TextEncoder("utf-8")
+                    .includes(new TextEncoder()
                                   .encode("minPinLength")
                                   .toString()));
   }, "navigator.credentials.create() with minPinLength requested");

webauthn/resources/common-inputs.js

@@ -24,7 +24,7 @@ const AUTHENTICATOR_SELECTION_CRITERIA = {
 };
 
 const MAKE_CREDENTIAL_OPTIONS = {
-    challenge: new TextEncoder("utf-8").encode(CHALLENGE),
+    challenge: new TextEncoder().encode(CHALLENGE),
     rp: PUBLIC_KEY_RP,
     user: PUBLIC_KEY_USER,
     pubKeyCredParams: PUBLIC_KEY_PARAMETERS,

webauthn/webauthn-testdriver-basic.https.html

@@ -40,7 +40,7 @@
     new Cbor(credential.response.attestationObject).getCBOR();
 
   let rpIdHash = new Uint8Array(await crypto.subtle.digest(
-    { name: "SHA-256" }, new TextEncoder("utf-8").encode(PUBLIC_KEY_RP.id)));
+    { name: "SHA-256" }, new TextEncoder().encode(PUBLIC_KEY_RP.id)));
 
   let authenticatorData = parseAuthenticatorData(attestationObject.authData);
 
@@ -59,7 +59,7 @@
 promise_test(async t => {
   let assertion = await navigator.credentials.get({
     publicKey: {
-      challenge: new TextEncoder("utf-8").encode(CHALLENGE),
+      challenge: new TextEncoder().encode(CHALLENGE),
       rpId: PUBLIC_KEY_RP.id,
       allowCredentials: [{
         type: "public-key",
@@ -87,7 +87,7 @@
   let authenticatorData = parseAuthenticatorData(binaryAuthenticatorData);
 
   let rpIdHash = new Uint8Array(await crypto.subtle.digest(
-    { name: "SHA-256" }, new TextEncoder("utf-8").encode(PUBLIC_KEY_RP.id)));
+    { name: "SHA-256" }, new TextEncoder().encode(PUBLIC_KEY_RP.id)));
 
   assert_array_equals(authenticatorData.rpIdHash, rpIdHash)
   assert_true(authenticatorData.flags.up);