Expose passwords to JavaScript in Credential Manager API

third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html

Index: third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html b/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
index 3114c5eeb76b0bda114ace6d845aec7ad58553e7..75c389927a20b09f4f38ffd0fb4067b6381dabab 100644
--- a/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
+++ b/third_party/WebKit/LayoutTests/http/tests/credentialmanager/passwordcredential-basics.html
@@ -26,6 +26,7 @@ test(function() {
     assert_equals(credential.idName, 'username');
     assert_equals(credential.passwordName, 'password');
     assert_equals(credential.additionalData, null);
+    assert_equals(credential.password, 'pencil');
 }, 'Interfaces and attributes of PasswordCredential');
 
 test(function() {
@@ -53,6 +54,7 @@ test(function() {
     assert_equals(credential.idName, 'username');
     assert_equals(credential.passwordName, 'password');
     assert_equals(credential.additionalData, null);
+    assert_equals(credential.password, 'pencil');
 
 }, 'Construct a PasswordCredential with an empty icon URL.');
 
@@ -69,6 +71,7 @@ test(function() {
     assert_equals(credential.idName, 'username');
     assert_equals(credential.passwordName, 'password');
     assert_equals(credential.additionalData, null);
+    assert_equals(credential.password, 'pencil');
 }, 'Construct a PasswordCredential with an empty name and icon URL.');
 
 test(function() {
@@ -86,6 +89,8 @@ test(function() {
     var additionalData = new FormData();
     credential.additionalData = additionalData;
     assert_equals(credential.additionalData, additionalData);
+
+    assert_equals(credential.password, 'pencil');
 }, 'Verify the basics of "idName", "passwordName", and "additionalData"');
 
 test(function() {
@@ -123,6 +128,8 @@ function verify_form_credential(f, credential) {
     assert_equals(credential.additionalData.get('theName'), 'friendly name'); 
     assert_equals(credential.additionalData.get('theExtraField'), 'extra'); 
 
+    assert_equals(credential.password, 'sekrit');
+
     var password = f.querySelector('[name=thePassword]');
     password.value = "";
     assert_throws(new TypeError(), _ => new PasswordCredential(f));