Remove duplication of DieFileDie, and move it to proper location.

chrome/test/ui/ui_test.h

 // Copyright (c) 2006-2008 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 CHROME_TEST_UI_UI_TEST_H_
 #define CHROME_TEST_UI_UI_TEST_H_
 
 // This file provides a common base for running UI unit tests, which operate
 // the entire browser application in a separate process for holistic
 // functional testing.
@@ skipping 46 matching lines @@
   virtual void SetUp();
 
   // Closes the browser window.
   virtual void TearDown();
 
   // Set up the test time out values.
   virtual void InitializeTimeouts();
 
   // ********* Utility functions *********
 
-  // Tries to delete the specified file/directory returning true on
-  // success.  This differs from file_util::Delete in that it
-  // repeatedly invokes Delete until successful, or a timeout is
-  // reached.  (This retrying is to work around Windows file locks
-  // and shouldn't be necessary on POSIX, but it can't hurt.)
-  // Returns true on success.
-  bool DieFileDie(const FilePath& file, bool recurse);
-
   // Launches the browser and IPC testing server.
   void LaunchBrowserAndServer();
 
   // Overridable so that derived classes can provide their own AutomationProxy.
   virtual AutomationProxy* CreateAutomationProxy(int execution_timeout);
 
   // Closes the browser and IPC testing server.
   void CloseBrowserAndServer();
 
   // Launches the browser with the given command line.
@@ skipping 432 matching lines @@
 #ifdef UNIT_TEST
 std::ostream& operator<<(std::ostream& out, const std::wstring& wstr);
 
 template<typename T>
 std::ostream& operator<<(std::ostream& out, const ::scoped_ptr<T>& ptr) {
   return out << ptr.get();
 }
 #endif  // UNIT_TEST
 
 #endif  // CHROME_TEST_UI_UI_TEST_H_