[Merge to M56] Prevent the pre-session-restore log spam

chrome/browser/chromeos/login/signin/merge_session_throttling_utils.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/signin/merge_session_throttling_utils.h"
 
 #include <stdint.h>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 166 matching lines @@
 
 bool ShouldDelayUrl(const GURL& url) {
   // If we are loading google properties while merge session is in progress,
   // we will show delayed loading page instead.
   return !net::NetworkChangeNotifier::IsOffline() &&
          !AreAllSessionMergedAlready() &&
          google_util::IsGoogleHostname(url.host_piece(),
                                        google_util::ALLOW_SUBDOMAIN);
 }
 
+bool IsSessionRestorePending(Profile* profile) {
+  if (!profile)
+    return false;
+
+  chromeos::OAuth2LoginManager* login_manager =
+      chromeos::OAuth2LoginManagerFactory::GetInstance()->GetForProfile(
+          profile);
+  bool pending_session_restore = false;
+  if (login_manager) {
+    switch (login_manager->state()) {
+      case chromeos::OAuth2LoginManager::SESSION_RESTORE_PREPARING:
+      case chromeos::OAuth2LoginManager::SESSION_RESTORE_IN_PROGRESS:
+        pending_session_restore = true;
+        break;
+
+      default:
+        break;
+    }
+  }
+
+  return pending_session_restore;
+}
+
 }  // namespace merge_session_throttling_utils