test-shell is outside of the screen when running layout tests.

Tools/DumpRenderTree/chromium/WebViewHost.cpp

 /*
  * Copyright (C) 2010, 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 728 matching lines @@
         );
 }
 
 // Public functions -----------------------------------------------------------
 
 WebViewHost::WebViewHost(TestShell* shell)
     : m_shell(shell)
     , m_proxy(0)
     , m_webWidget(0)
     , m_shutdownWasInvoked(false)
+    , m_screenUnavailableBorder(screenUnavailableBorder)
 {
     reset();
 }
 
 WebViewHost::~WebViewHost()
 {
     ASSERT(m_shutdownWasInvoked);
     if (m_inModalLoop)
         webkit_support::QuitMessageLoop();
 }
@@ skipping 244 matching lines @@
     webView()->willExitFullScreen();
     webView()->didExitFullScreen();
 }
 
 webkit_support::TestMediaStreamClient* WebViewHost::testMediaStreamClient()
 {
     if (!m_testMediaStreamClient.get())
         m_testMediaStreamClient = adoptPtr(new webkit_support::TestMediaStreamClient());
     return m_testMediaStreamClient.get();
 }