Use SignInManager to get AccountInfo in first run

There seems to be a regression on M70 head that get AccountInfo using
identity_manager->GetPrimaryAccountInfo() always return empty
hosted_domain field. Using signin_manager->GetAuthenticatedAccountInfo()
seems to be a more stable way.

Bug: b/116746192
Test: Local build
Change-Id: I8369787b4f8d33e63d4029705d9f3f02c1a0376d
Reviewed-on: https://chromium-review.googlesource.com/c/1278526Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Commit-Queue: Yue Li <updowndota@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599348}

chrome/browser/chromeos/first_run/first_run.cc

@@ -18,7 +18,7 @@
 #include "chrome/browser/policy/profile_policy_connector_factory.h"
 #include "chrome/browser/prefs/pref_service_syncable_util.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/signin/identity_manager_factory.h"
+#include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/common/chrome_switches.h"
@@ -31,6 +31,7 @@
 #include "components/prefs/pref_service.h"
 #include "components/signin/core/browser/account_info.h"
 #include "components/signin/core/browser/account_tracker_service.h"
+#include "components/signin/core/browser/signin_manager_base.h"
 #include "components/sync_preferences/pref_service_syncable.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/notification_observer.h"
@@ -39,7 +40,6 @@
 #include "content/public/common/content_switches.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/constants.h"
-#include "services/identity/public/cpp/identity_manager.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace chromeos {
@@ -122,11 +122,11 @@ class DialogLauncher : public content::NotificationObserver {
 
     // Whether the account is supported for voice interaction.
     bool account_supported = false;
-    identity::IdentityManager* identity_manager =
-        IdentityManagerFactory::GetForProfile(profile_);
-    if (identity_manager) {
+    SigninManagerBase* signin_manager =
+        SigninManagerFactory::GetForProfileIfExists(profile_);
+    if (signin_manager) {
       std::string hosted_domain =
-          identity_manager->GetPrimaryAccountInfo().hosted_domain;
+          signin_manager->GetAuthenticatedAccountInfo().hosted_domain;
       if (hosted_domain == AccountTrackerService::kNoHostedDomainFound ||
           hosted_domain == "google.com") {
         account_supported = true;