Adds TraySessionLengthLimitTest to ash_unittests.

ash/test/ash_test_base.h

 // 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.
 
 #ifndef ASH_TEST_ASH_TEST_BASE_H_
 #define ASH_TEST_ASH_TEST_BASE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 21 matching lines @@
 
 namespace ash {
 namespace internal {
 class DisplayManager;
 }  // namespace internal
 
 namespace test {
 
 class AshTestHelper;
 class TestScreenshotDelegate;
+class TestSystemTrayDelegate;
 #if defined(OS_WIN)
 class TestMetroViewerProcessHost;
 #endif
 
 class AshTestViewsDelegate : public views::TestViewsDelegate {
  public:
   // Overriden from TestViewsDelegate.
   virtual content::WebContents* CreateWebContents(
       content::BrowserContext* browser_context,
       content::SiteInstance* site_instance) OVERRIDE;
@@ skipping 57 matching lines @@
 
   // True if the running environment supports host window resize,
   // or false otherwise (e.g. win8 bot).
   static bool SupportsHostWindowResize();
 
   void set_start_session(bool start_session) { start_session_ = start_session; }
 
   void RunAllPendingInMessageLoop();
 
   TestScreenshotDelegate* GetScreenshotDelegate();
+  TestSystemTrayDelegate* GetSystemTrayDelegate();
 
   // Utility methods to emulate user logged in or not, session started or not
   // and user able to lock screen or not cases.
   void SetSessionStarted(bool session_started);
   void SetUserLoggedIn(bool user_logged_in);
   void SetCanLockScreen(bool can_lock_screen);
   void SetShouldLockScreenBeforeSuspending(bool should_lock);
   void SetUserAddingScreenRunning(bool user_adding_screen_running);
 
   // Methods to emulate blocking and unblocking user session with given
@@ skipping 28 matching lines @@
   virtual ~NoSessionAshTestBase() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NoSessionAshTestBase);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_ASH_TEST_BASE_H_