Fix front-end host creation upon navigation

content/public/browser/devtools_frontend_host.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_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/strings/string_piece.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
-class RenderFrameHost;
+class WebContents;
 
 // This class dispatches messages between DevTools frontend and Delegate
 // which is implemented by the embedder.
 // This allows us to avoid exposing DevTools frontend messages through
 // the content public API.
 class DevToolsFrontendHost {
  public:
   using HandleMessageCallback = base::Callback<void(const std::string&)>;
 
   // Creates a new DevToolsFrontendHost for RenderFrameHost where DevTools
   // frontend is loaded.
   CONTENT_EXPORT static DevToolsFrontendHost* Create(
-      RenderFrameHost* frontend_main_frame,
+      WebContents* web_contents,
       const HandleMessageCallback& handle_message_callback);
 
   CONTENT_EXPORT virtual ~DevToolsFrontendHost() {}
 
   CONTENT_EXPORT virtual void BadMessageRecieved() {}
 
   // Returns bundled DevTools frontend resource by |path|. Returns empty string
   // if |path| does not correspond to any frontend resource.
   CONTENT_EXPORT static base::StringPiece GetFrontendResource(
       const std::string& path);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_