Fix missing headers about vpn service

extensions/browser/browser_context_keyed_service_factories.cc

Index: extensions/browser/browser_context_keyed_service_factories.cc
diff --git a/extensions/browser/browser_context_keyed_service_factories.cc b/extensions/browser/browser_context_keyed_service_factories.cc
index a203fb9599e8fd0b52465215c8b28e5fae66edf0..b230e314c3a4a239ac51c2c3625d2fbe0023e821 100644
--- a/extensions/browser/browser_context_keyed_service_factories.cc
+++ b/extensions/browser/browser_context_keyed_service_factories.cc
@@ -33,7 +33,6 @@
 #include "extensions/browser/api/usb/usb_event_router.h"
 #include "extensions/browser/api/usb/usb_guid_map.h"
 #include "extensions/browser/api/virtual_keyboard_private/virtual_keyboard_private_api.h"
-#include "extensions/browser/api/vpn_provider/vpn_service_factory.h"
 #include "extensions/browser/api/web_request/web_request_api.h"
 #include "extensions/browser/api/webcam_private/webcam_private_api.h"
 #include "extensions/browser/declarative_user_script_manager_factory.h"
@@ -43,6 +42,10 @@
 #include "extensions/browser/process_manager_factory.h"
 #include "extensions/browser/renderer_startup_helper.h"
 
+#if defined(OS_CHROMEOS)
+#include "extensions/browser/api/vpn_provider/vpn_service_factory.h"
+#endif  // defined(OS_CHROMEOS)
+
 namespace extensions {
 
 void EnsureBrowserContextKeyedServiceFactoriesBuilt() {