Added WARN_UNUSED_RESULT to ScopedTempDir methods.

chrome/test/ui_test_utils.h

 // Copyright (c) 2010 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_TEST_UTILS_H_
 #define CHROME_TEST_UI_TEST_UTILS_H_
 #pragma once
 
 #include <map>
 #include <queue>
@@ skipping 303 matching lines @@
 // object, and is stopped when the destructor is called. Note that
 // because of the underlying script that is used:
 //
 //    third_paty/WebKit/Tools/Scripts/new-run-webkit-websocketserver
 //
 // Only *_wsh.py handlers found under "http/tests/websocket/tests" from the
 // |root_directory| will be found and active while running the test
 // server.
 class TestWebSocketServer {
  public:
-  // Creates and starts a python websocket server with |root_directory|.
-  explicit TestWebSocketServer(const FilePath& root_directory);
+  TestWebSocketServer();
 
-  // Destroys and stops the server.
+  // Stops the python websocket server if it was already started.
   ~TestWebSocketServer();
 
+  // Starts the python websocket server using |root_directory|. Returns whether
+  // the server was successfully started.
+  bool Start(const FilePath& root_directory);
+
  private:
   // Sets up PYTHONPATH to run websocket_server.py.
   void SetPythonPath();
 
   // Creates a CommandLine for invoking the python interpreter.
   CommandLine* CreatePythonCommandLine();
 
   // Creates a CommandLine for invoking the python websocker server.
   CommandLine* CreateWebSocketServerCommandLine();
 
+  // Has the server been started?
+  bool started_;
+
   // A Scoped temporary directory for holding the python pid file.
   ScopedTempDir temp_dir_;
 
   // Used to close the same python interpreter when server falls out
   // scope.
   FilePath websocket_pid_file_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWebSocketServer);
 };
 
@@ skipping 198 matching lines @@
 
 // Takes a snapshot of the entire page, according to the width and height
 // properties of the DOM's document. Returns true on success. DOMAutomation
 // must be enabled.
 bool TakeEntirePageSnapshot(RenderViewHost* rvh,
                             SkBitmap* bitmap) WARN_UNUSED_RESULT;
 
 }  // namespace ui_test_utils
 
 #endif  // CHROME_TEST_UI_TEST_UTILS_H_