Add initial Controller to DownloadService

components/download/internal/test/test_download_driver.cc

Index: components/download/internal/test/test_download_driver.cc
diff --git a/components/download/internal/test/test_download_driver.cc b/components/download/internal/test/test_download_driver.cc
index 78de8d776ade3239c492b665c377c33ade62dcf3..3f67629650da8c0b181b005376b469221aa51472 100644
--- a/components/download/internal/test/test_download_driver.cc
+++ b/components/download/internal/test/test_download_driver.cc
@@ -9,6 +9,7 @@
 #include "net/http/http_response_headers.h"
 
 namespace download {
+namespace test {
 
 TestDownloadDriver::TestDownloadDriver() : is_ready_(false), client_(nullptr) {}
 
@@ -81,4 +82,5 @@ base::Optional<DriverEntry> TestDownloadDriver::Find(const std::string& guid) {
   return it->second;
 }
 
-}  // namespace downloads
+}  // namespace test
+}  // namespace download