[Extensions] Clean up the handling of ExtensionHostMsg_Request

extensions/browser/guest_view/extension_view/extension_view_guest.h

 // Copyright 2015 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 EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_
 
 #include "base/macros.h"
 #include "components/guest_view/browser/guest_view.h"
 #include "extensions/browser/extension_function_dispatcher.h"
-#include "extensions/browser/guest_view/extension_view/extension_view_guest_delegate.h"
 #include "url/gurl.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 
 class ExtensionViewGuest
-    : public guest_view::GuestView<ExtensionViewGuest>,
-      public ExtensionFunctionDispatcher::Delegate {
+    : public guest_view::GuestView<ExtensionViewGuest> {
  public:
   static const char Type[];
   static guest_view::GuestViewBase* Create(
       content::WebContents* owner_web_contents);
 
   // Request navigating the guest to the provided |src| URL.
   void NavigateGuest(const std::string& src, bool force_navigation);
 
   // GuestViewBase implementation.
   bool CanRunInDetachedState() const override;
   void CreateWebContents(const base::DictionaryValue& create_params,
                          const WebContentsCreatedCallback& callback) override;
   void DidInitialize(const base::DictionaryValue& create_params) override;
   void DidAttachToEmbedder() override;
   const char* GetAPINamespace() const override;
   int GetTaskPrefix() const override;
 
   // content::WebContentsObserver implementation.
   void DidCommitProvisionalLoadForFrame(
       content::RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) override;
   void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) override;
-  bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   ExtensionViewGuest(content::WebContents* owner_web_contents);
   ~ExtensionViewGuest() override;
-  void OnRequest(const ExtensionHostMsg_Request_Params& params);
 
   // Applies attributes to the extensionview.
   void ApplyAttributes(const base::DictionaryValue& params);
 
-  scoped_ptr<extensions::ExtensionFunctionDispatcher>
-      extension_function_dispatcher_;
-  scoped_ptr<extensions::ExtensionViewGuestDelegate>
-      extension_view_guest_delegate_;
   GURL view_page_;
   GURL extension_url_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewGuest);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_VIEW_EXTENSION_VIEW_GUEST_H_