Add webusb notification UI code

components/webusb.gypi

Index: components/webusb.gypi
diff --git a/components/undo.gypi b/components/webusb.gypi
similarity index 52%
copy from components/undo.gypi
copy to components/webusb.gypi
index 7039ace3a3a5bc551566cba0527f6b70676dab45..9731d4183685ea1b1174130f0f86359d08429e61 100644
--- a/components/undo.gypi
+++ b/components/webusb.gypi
@@ -5,29 +5,26 @@
 {
   'targets': [
     {
-      # GN version: //components/undo
-      'target_name': 'undo_component',
+      'target_name': 'webusb',
       'type': 'static_library',
-      'include_dirs': [
-        '..',
-      ],
       'dependencies': [
         '../base/base.gyp:base',
+        '../device/core/core.gyp:device_core',
+        '../device/usb/usb.gyp:device_usb',
         '../ui/base/ui_base.gyp:ui_base',
-        'bookmarks_browser',
+        '../ui/gfx/gfx.gyp:gfx',
+        '../ui/message_center/message_center.gyp:message_center',
         'components_strings.gyp:components_strings',
         'keyed_service_core',
       ],
+      'include_dirs': [
+        '..',
+      ],
       'sources': [
-        'undo/bookmark_renumber_observer.h',
-        'undo/bookmark_undo_service.cc',
-        'undo/bookmark_undo_service.h',
-        'undo/bookmark_undo_utils.cc',
-        'undo/bookmark_undo_utils.h',
-        'undo/undo_manager.cc',
-        'undo/undo_manager.h',
-        'undo/undo_manager_observer.h',
-        'undo/undo_operation.h',
+        'webusb/webusb_browser_client.cc',
+        'webusb/webusb_browser_client.h',
+        'webusb/webusb_detector.cc',
+        'webusb/webusb_detector.h',
       ],
     },
   ],