Cleanup more test code.

chrome/test/webdriver/session_manager.cc

Index: chrome/test/webdriver/session_manager.cc
diff --git a/chrome/test/webdriver/session_manager.cc b/chrome/test/webdriver/session_manager.cc
index 0064737f1f7860f5b5e03bc6e390a58a02e0d293..30adf9e36012c0104746a2b8c95cc6c564ee5e93 100644
--- a/chrome/test/webdriver/session_manager.cc
+++ b/chrome/test/webdriver/session_manager.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -177,6 +177,10 @@ Session* SessionManager::GetSession(const std::string& id) const {
   return it->second;
 }
 
+SessionManager::SessionManager() : addr_(""), port_(""), count_(0) {}
+
+SessionManager::~SessionManager() {}
+
 // static
 SessionManager* SessionManager::GetInstance() {
   return Singleton<SessionManager>::get();