Use Mojo enum types in the C++ USB interface

device/usb/BUILD.gn

Index: device/usb/BUILD.gn
diff --git a/device/usb/BUILD.gn b/device/usb/BUILD.gn
index 76fa59e24d4b5e78d7b007d8e1b679c1a8efd7f1..83ff8c1140bc23212fd36d2f795a394176212f8e 100644
--- a/device/usb/BUILD.gn
+++ b/device/usb/BUILD.gn
@@ -57,13 +57,22 @@ static_library("usb") {
 
   deps = [
     ":usb_device_ids",
-    "//base",
     "//base/third_party/dynamic_annotations",
     "//components/device_event_log",
     "//device/base",
     "//net",
   ]
 
+  public_deps = [
+    "//base",
+    "//url",
+
+    # Depend on the header generation target only to avoid the circular
+    # dependency caused by both using enums defined in the mojom headers and
+    # typemappings linking against this target.
+    "public/interfaces:interfaces__generator",
+  ]
+
   if (use_udev) {
     sources += [
       "usb_service_linux.cc",