Even more test cleanup. Some fixes to non-test code.

chrome/test/webdriver/commands/title_command.cc

 // 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.
 
 #include <string>
 
 #include "chrome/test/webdriver/commands/title_command.h"
 
 namespace webdriver {
 
+TitleCommand::TitleCommand(const std::vector<std::string>& path_segments,
+                           const DictionaryValue* const parameters)
+    : WebDriverCommand(path_segments, parameters) {}
+
+TitleCommand::~TitleCommand() {}
+
+bool TitleCommand::DoesGet() {
+  return true;
+}
+
 void TitleCommand::ExecuteGet(Response* const response) {
   std::string title;
   if (!session_->GetTabTitle(&title)) {
     SET_WEBDRIVER_ERROR(response, "GetTabTitle failed", kInternalServerError);
     return;
   }
 
   response->set_value(new StringValue(title));
   response->set_status(kSuccess);
 }
 
+bool TitleCommand::RequiresValidTab() {
+  return true;
+}
+
 }  // namespace webdriver