Reland: Add webusb permission bubble mojom

components/webusb/BUILD.gn

 # Copyright 2015 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.
 
 static_library("webusb") {
   sources = [
     "webusb_browser_client.h",
     "webusb_detector.cc",
     "webusb_detector.h",
   ]
 
   deps = [
     "//base",
+    "//components/webusb/public/interfaces",
     "//device/core",
     "//device/usb",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
     "webusb_detector_unittest.cc",
   ]
 
   deps = [
     ":webusb",
     "//device/usb",
     "//device/usb:mocks",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }