Add android owners for content/public/test

Change-Id: Ic9f5deeb77213bf58e3706983e2291955b84f519
Reviewed-on: https://chromium-review.googlesource.com/1167544Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581794}

content/public/test/OWNERS

@@ -6,6 +6,9 @@ tommi@chromium.org
 # For download tests support review.
 per-file test_download_http_response.*=file://components/download/OWNERS
 
+# For Android-specific changes.
+per-file *android*=file://content/public/test/android/OWNERS
+
 # For security presubmit checks, though test mojom really don't need review.
 per-file *.mojom=set noparent
 per-file *.mojom=file://ipc/SECURITY_OWNERS