Add Keyboard Latency UMA Metrics.

content/public/test/browser_test_utils.cc

 // Copyright (c) 2012 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.
 
 #include "content/public/test/browser_test_utils.h"
 
 #include <stddef.h>
 #include <tuple>
 #include <utility>
 
@@ skipping 228 matching lines @@
                        ui::DomCode code,
                        ui::KeyboardCode key_code,
                        int modifiers) {
   NativeWebKeyboardEvent event(type, modifiers, base::TimeTicks::Now());
   BuildSimpleWebKeyEvent(type, key, code, key_code, &event);
   WebContentsImpl* web_contents_impl =
       static_cast<WebContentsImpl*>(web_contents);
   RenderWidgetHostImpl* main_frame_rwh =
       web_contents_impl->GetMainFrame()->GetRenderWidgetHost();
   web_contents_impl->GetFocusedRenderWidgetHost(main_frame_rwh)
-      ->ForwardKeyboardEvent(event);
+      ->ForwardKeyboardEventWithLatencyInfo(event, ui::LatencyInfo());
 }
 
 void GetCookiesCallback(std::string* cookies_out,
                         base::WaitableEvent* event,
                         const std::string& cookies) {
   *cookies_out = cookies;
   event->Signal();
 }
 
 void GetCookiesOnIOThread(const GURL& url,
@@ skipping 1771 matching lines @@
                                  bool user_gesture,
                                  bool last_unlocked_by_target,
                                  bool privileged) {
   IPC::IpcSecurityTestUtil::PwnMessageReceived(
       process->GetChannel(),
       ViewHostMsg_LockMouse(routing_id, user_gesture, last_unlocked_by_target,
                             privileged));
 }
 
 }  // namespace content