Cleanup more test code.

chrome/test/webdriver/session.h

Index: chrome/test/webdriver/session.h
diff --git a/chrome/test/webdriver/session.h b/chrome/test/webdriver/session.h
index e716e198eb04f40f338f13bbcd1a3712b58b41ae..8bc5cd54fb6ea3bb008061a96e96ed0403119b94 100644
--- a/chrome/test/webdriver/session.h
+++ b/chrome/test/webdriver/session.h
@@ -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.
 
@@ -11,6 +11,9 @@
 #include "chrome/test/webdriver/automation.h"
 #include "chrome/test/webdriver/error_codes.h"
 
+class ListValue;
+class Value;
+
 namespace base {
 class WaitableEvent;
 }
@@ -25,6 +28,7 @@ namespace webdriver {
 class Session {
  public:
   explicit Session(const std::string& id);
+  ~Session();
 
   // Creates a browser.
   bool Init();