Extend the ToRenderFrameHost magic to FrameTreeNode* and Shell*

content/test/content_browser_test_utils_internal.h

 // 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.
 
 #ifndef CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_INTERNAL_H_
 #define CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_INTERNAL_H_
 
 // A collection of functions designed for use with content_shell based browser
 // tests internal to the content/ module.
 // Note: If a function here also works with browser_tests, it should be in
@@ skipping 24 matching lines @@
 class ToRenderFrameHost;
 
 // Navigates the frame represented by |node| to |url|, blocking until the
 // navigation finishes.
 void NavigateFrameToURL(FrameTreeNode* node, const GURL& url);
 
 // Sets the DialogManager to proceed by default or not when showing a
 // BeforeUnload dialog.
 void SetShouldProceedOnBeforeUnload(Shell* shell, bool proceed);
 
+// Extends the ToRenderFrameHost mechanism to FrameTreeNodes.
+RenderFrameHost* ConvertToRenderFrameHost(FrameTreeNode* frame_tree_node);
+
 // Creates compact textual representations of the state of the frame tree that
 // is appropriate for use in assertions.
 //
 // The diagrams show frame tree structure, the SiteInstance of current frames,
 // presence of pending frames, and the SiteInstances of any and all proxies.
 // They look like this:
 //
 //        Site A (D pending) -- proxies for B C
 //          |--Site B --------- proxies for A C
 //          +--Site C --------- proxies for B A
@@ skipping 113 matching lines @@
   cc::SurfaceManager* surface_manager_;
   cc::SurfaceId root_surface_id_;
   RenderWidgetHostViewChildFrame* target_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceHitTestReadyNotifier);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_INTERNAL_H_