Extend the ToRenderFrameHost magic to FrameTreeNode* and Shell*

content/browser/screen_orientation/screen_orientation_browsertest.cc

 // Copyright 2014 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 <stdlib.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
@@ skipping 219 matching lines @@
 IN_PROC_BROWSER_TEST_F(ScreenOrientationLockDisabledBrowserTest,
     DISABLED_NotSupported) {
   GURL test_url = GetTestUrl("screen_orientation",
                              "screen_orientation_lock_disabled.html");
 
   TestNavigationObserver navigation_observer(shell()->web_contents(), 1);
   shell()->LoadURL(test_url);
   navigation_observer.Wait();
 
   {
-    ASSERT_TRUE(ExecuteScript(shell()->web_contents(), "run();"));
+    ASSERT_TRUE(ExecuteScript(shell(), "run();"));
 
     TestNavigationObserver navigation_observer(shell()->web_contents(), 1);
     navigation_observer.Wait();
     EXPECT_EQ("NotSupportedError",
               shell()->web_contents()->GetLastCommittedURL().ref());
   }
 }
 #endif // defined(OS_ANDROID)
 
 } // namespace content