Wait for URLBlacklist update tasks on automation tests.

chrome/test/base/signaling_task.h

Index: chrome/test/base/signaling_task.h
diff --git a/chrome/test/base/signaling_task.h b/chrome/test/base/signaling_task.h
deleted file mode 100644
index 6264826adb2a74e22e39037dd09182cb064c8b22..0000000000000000000000000000000000000000
--- a/chrome/test/base/signaling_task.h
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 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.
-
-// A simple callback that you can use to wait for events on a thread.
-
-#ifndef CHROME_TEST_BASE_SIGNALING_TASK_H_
-#define CHROME_TEST_BASE_SIGNALING_TASK_H_
-#pragma once
-
-#include "base/task.h"
-
-namespace base {
-class WaitableEvent;
-}
-
-class SignalingTask : public Task {
- public:
-  explicit SignalingTask(base::WaitableEvent* event);
-  virtual ~SignalingTask();
-
-  virtual void Run();
-
- private:
-  base::WaitableEvent* event_;
-};
-
-#endif  // CHROME_TEST_BASE_SIGNALING_TASK_H_