Change ui::Event::time_stamp from TimeDelta to TimeTicks

chrome/browser/ui/ash/launcher/chrome_launcher_controller_browsertest.cc

 // Copyright 2013 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 "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include <stddef.h>
 
 #include "ash/ash_switches.h"
 #include "ash/shelf/shelf.h"
@@ skipping 67 matching lines @@
 
 using extensions::AppWindow;
 using extensions::Extension;
 using content::WebContents;
 
 namespace {
 
 class TestEvent : public ui::Event {
  public:
   explicit TestEvent(ui::EventType type)
-      : ui::Event(type, base::TimeDelta(), 0) {
-  }
+      : ui::Event(type, base::TimeTicks(), 0) {}
   ~TestEvent() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestEvent);
 };
 
 class TestAppWindowRegistryObserver
     : public extensions::AppWindowRegistry::Observer {
  public:
   explicit TestAppWindowRegistryObserver(Profile* profile)
@@ skipping 2191 matching lines @@
   // Close all windows.
   CloseBrowserWindow(browser(), menu1.get(), LauncherContextMenu::MENU_CLOSE);
   EXPECT_EQ(0u, BrowserList::GetInstance()->size());
 
   // Check if "Close" is removed from the context menu.
   std::unique_ptr<LauncherContextMenu> menu2 =
       CreateLauncherContextMenu(ash::TYPE_BROWSER_SHORTCUT);
   ASSERT_FALSE(
       IsItemPresentInMenu(menu2.get(), LauncherContextMenu::MENU_CLOSE));
 }