Cleanup more test code.

chrome/test/webdriver/session_manager.cc

-// 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.
 
 #include "chrome/test/webdriver/session_manager.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/process.h"
 #include "base/process_util.h"
 #include "base/ref_counted.h"
@@ skipping 158 matching lines @@
   std::map<std::string, Session*>::const_iterator it;
   base::AutoLock lock(map_lock_);
   it = map_.find(id);
   if (it == map_.end()) {
     VLOG(1) << "No such session with ID " << id;
     return NULL;
   }
   return it->second;
 }
 
+SessionManager::SessionManager() : addr_(""), port_(""), count_(0) {}
+
+SessionManager::~SessionManager() {}
+
 // static
 SessionManager* SessionManager::GetInstance() {
   return Singleton<SessionManager>::get();
 }
 
 }  // namespace webdriver