[Autobot][Password change] Use canonical url as signon_realm value when creating form

Login.origin can contain additional data, like queries or username.
signon_realm needs to be canonical url.

Bug: 1064264
Change-Id: I78eacff5bc958887e230586330ded6d9215c45db
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2220027Reviewed-by: Clemens Arbesser <arbesser@google.com>
Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Commit-Queue: Milica Selakovic <selakovic@google.com>
Cr-Commit-Position: refs/heads/master@{#774090}

components/autofill_assistant/browser/BUILD.gn

@@ -190,6 +190,7 @@ jumbo_static_library("browser") {
     "//components/autofill_assistant/browser/devtools",
     "//components/google/core/common:common",
     "//components/password_manager/core/browser:browser",
+    "//components/password_manager/core/browser/form_parsing:form_parsing",
     "//components/signin/public/identity_manager",
     "//components/strings:components_strings_grit",
     "//components/version_info",

components/autofill_assistant/browser/website_login_manager_impl.cc

@@ -7,6 +7,7 @@
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/password_manager/core/browser/form_fetcher_impl.h"
+#include "components/password_manager/core/browser/form_parsing/form_parser.h"
 #include "components/password_manager/core/browser/password_form_metrics_recorder.h"
 #include "components/password_manager/core/browser/password_generation_frame_helper.h"
 #include "components/password_manager/core/browser/password_manager_client.h"
@@ -26,8 +27,8 @@ autofill::PasswordForm CreatePasswordForm(
     const WebsiteLoginManager::Login& login,
     const std::string& password) {
   autofill::PasswordForm form;
-  form.signon_realm = login.origin.spec();
   form.url = login.origin.GetOrigin();
+  form.signon_realm = password_manager::GetSignonRealm(form.url);
   form.username_value = base::UTF8ToUTF16(login.username);
   form.password_value = base::UTF8ToUTF16(password);