Rename VPN_PROVIDER_ON_UIEVENT to VPN_PROVIDER_ON_UI_EVENT.

extensions/browser/extension_event_histogram_value.h

 // 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.
 
 #ifndef EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_
 #define EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_
 
 namespace extensions {
 namespace events {
 
@@ skipping 281 matching lines @@
   TTS_ENGINE_ON_SPEAK,
   TTS_ENGINE_ON_STOP,
   USB_ON_DEVICE_ADDED,
   USB_ON_DEVICE_REMOVED,
   VIRTUAL_KEYBOARD_PRIVATE_ON_BOUNDS_CHANGED,
   VIRTUAL_KEYBOARD_PRIVATE_ON_TEXT_INPUT_BOX_FOCUSED,
   VPN_PROVIDER_ON_CONFIG_CREATED,
   VPN_PROVIDER_ON_CONFIG_REMOVED,
   VPN_PROVIDER_ON_PACKET_RECEIVED,
   VPN_PROVIDER_ON_PLATFORM_MESSAGE,
-  VPN_PROVIDER_ON_UIEVENT,
+  VPN_PROVIDER_ON_UI_EVENT,
   WALLPAPER_PRIVATE_ON_WALLPAPER_CHANGED_BY_3RD_PARTY,
   WEB_NAVIGATION_ON_BEFORE_NAVIGATE,
   WEB_NAVIGATION_ON_COMMITTED,
   WEB_NAVIGATION_ON_COMPLETED,
   WEB_NAVIGATION_ON_CREATED_NAVIGATION_TARGET,
   WEB_NAVIGATION_ON_DOM_CONTENT_LOADED,
   WEB_NAVIGATION_ON_ERROR_OCCURRED,
   WEB_NAVIGATION_ON_HISTORY_STATE_UPDATED,
   WEB_NAVIGATION_ON_REFERENCE_FRAGMENT_UPDATED,
   WEB_NAVIGATION_ON_TAB_REPLACED,
@@ skipping 49 matching lines @@
   SCREENLOCK_PRIVATE_ON_AUTH_ATTEMPTED,
   // Last entry: Add new entries above, then run:
   // python tools/metrics/histograms/update_extension_histograms.py
   ENUM_BOUNDARY
 };
 
 }  // namespace events
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_