Fix Download.DownloadManager.CreationDelay histogram.

Download.DownloadManager.CreationDelay histogram description states
> Records the delay of creating non-incognito download manager after the

> download system is initialized.
but currently histogram is reported only for incognito profiles.

Change-Id: I48344f2b67af3cb1bf62b54d6b2b7fbb507b5e20
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485269Reviewed-by: Min Qin <qinmin@chromium.org>
Commit-Queue: Alexander Kalugin <akalugin@yandex-team.ru>
Cr-Commit-Position: refs/heads/master@{#819232}

chrome/browser/download/simple_download_manager_coordinator_factory.cc

@@ -60,7 +60,7 @@ SimpleDownloadManagerCoordinatorFactory::BuildServiceInstanceFor(
   return std::make_unique<download::SimpleDownloadManagerCoordinator>(
       base::BindRepeating(&DownloadUrlWithDownloadManager,
                           base::Unretained(key)),
-      key->IsOffTheRecord());
+      !key->IsOffTheRecord());
 }
 
 SimpleFactoryKey* SimpleDownloadManagerCoordinatorFactory::GetKeyToUse(