Fix typo in comment

R=mkwst@chromium.org,clamy@chromium.org

Change-Id: I1d32699940108e69b116449309a50fae8e07c1bb
Reviewed-on: https://chromium-review.googlesource.com/1049387Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556723}

content/browser/download/download_browsertest.cc

@@ -2932,7 +2932,7 @@ IN_PROC_BROWSER_TEST_F(DownloadContentTest, DownloadAttributeServerError) {
 }
 
 // A cross-origin request that fails before it gets a response from the server
-// should result in an network error page.
+// should result in a network error page.
 IN_PROC_BROWSER_TEST_F(DownloadContentTest, DownloadAttributeNetworkError) {
   SetupErrorInjectionDownloads();
   GURL url = TestDownloadHttpResponse::GetNextURLForDownload();