Fix use-after-move in //content/browser/download/

Fix use-after-move (potential) bugs found by the
"bugprone-use-after-move" clang-tidy check.

Bug: 1122844
Change-Id: I1aa8dc85cdb849382d1dc6ece9b03d0c435cf4ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2382852Reviewed-by: Min Qin <qinmin@chromium.org>
Commit-Queue: Maksim Ivanov <emaxx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803124}

content/browser/download/download_manager_impl.cc

@@ -1402,8 +1402,8 @@ void DownloadManagerImpl::BeginDownloadInternal(
           std::move(web_contents_getter), url, method, std::move(initiator),
           false /* from_download_cross_origin_redirect */, content_initiated,
           std::move(on_can_download_checks_done));
-      return;
     }
+    return;
   }
 
   BeginResourceDownloadOnChecksComplete(