Revert of ash: Use system tray mojo interface to show system update tray icon

chrome/browser/ui/ash/system_tray_client_browsertest.cc

Index: chrome/browser/ui/ash/system_tray_client_browsertest.cc
diff --git a/chrome/browser/ui/ash/system_tray_client_browsertest.cc b/chrome/browser/ui/ash/system_tray_client_browsertest.cc
deleted file mode 100644
index 2f37af4542983efe541e284ea0b5be6e887473d7..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/ash/system_tray_client_browsertest.cc
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright 2016 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/system_tray_client.h"
-
-#include "ash/common/system/tray/system_tray.h"
-#include "ash/common/system/update/tray_update.h"
-#include "ash/common/wm_root_window_controller.h"
-#include "ash/common/wm_shell.h"
-#include "chrome/browser/upgrade_detector.h"
-#include "chrome/test/base/in_process_browser_test.h"
-#include "content/public/test/test_utils.h"
-
-ash::TrayUpdate* GetTrayUpdate() {
-  return ash::WmShell::Get()
-      ->GetPrimaryRootWindowController()
-      ->GetSystemTray()
-      ->tray_update();
-}
-
-using SystemTrayClientTest = InProcessBrowserTest;
-
-// Test that a chrome update shows the update icon in the system menu.
-IN_PROC_BROWSER_TEST_F(SystemTrayClientTest, UpdateTrayIcon) {
-  ash::TrayUpdate* tray_update = GetTrayUpdate();
-
-  // When no update is pending, the icon isn't visible.
-  EXPECT_FALSE(tray_update->tray_view()->visible());
-
-  // Simulate an upgrade. This sends a mojo message to ash.
-  UpgradeDetector::GetInstance()->NotifyUpgradeRecommended();
-  content::RunAllPendingInMessageLoop();
-
-  // Tray icon is now visible.
-  EXPECT_TRUE(tray_update->tray_view()->visible());
-}
-
-// Test that a flash update causes the update UI to show in the system menu.
-IN_PROC_BROWSER_TEST_F(SystemTrayClientTest, FlashUpdateTrayIcon) {
-  ash::TrayUpdate* tray_update = GetTrayUpdate();
-
-  // When no update is pending, the icon isn't visible.
-  EXPECT_FALSE(tray_update->tray_view()->visible());
-
-  // Simulate a Flash update. This sends a mojo message to ash.
-  SystemTrayClient::Get()->SetFlashUpdateAvailable();
-  content::RunAllPendingInMessageLoop();
-
-  // Tray icon is now visible.
-  EXPECT_TRUE(tray_update->tray_view()->visible());
-}