Typemap device.usb.DeviceFilter to device::UsbDeviceFilter.

device/usb/public/interfaces/device_manager.typemap

Index: device/usb/public/interfaces/device_manager.typemap
diff --git a/device/usb/public/interfaces/device_manager.typemap b/device/usb/public/interfaces/device_manager.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..e283b8307eb119d758f0d0f4dc2d2bbc8c0be86d
--- /dev/null
+++ b/device/usb/public/interfaces/device_manager.typemap
@@ -0,0 +1,12 @@
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+mojom = "//device/usb/public/interfaces/device_manager.mojom"
+public_headers = [ "//device/usb/usb_device_filter.h" ]
+traits_headers =
+    [ "//device/usb/public/interfaces/device_manager_struct_traits.h" ]
+deps = [
+  "//device/usb",
+]
+type_mappings = [ "device.usb.DeviceFilter=device::UsbDeviceFilter" ]