[Extensions] Clean up the handling of ExtensionHostMsg_Request

extensions/browser/guest_view/extension_options/extension_options_guest_delegate.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 EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_DELEGATE_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_DELEGATE_H_
 
 #include "base/macros.h"
 
 namespace content {
 struct ContextMenuParams;
 struct OpenURLParams;
 class WebContents;
 }
 
 namespace extensions {
 
 class ExtensionOptionsGuest;
 
 // Interface to handle communication between ExtensionOptionsGuest (in
 // extensions) with the browser.
 class ExtensionOptionsGuestDelegate {
  public:
   explicit ExtensionOptionsGuestDelegate(ExtensionOptionsGuest* guest);
   virtual ~ExtensionOptionsGuestDelegate();
 
-  // Called from ExtensionOptionsGuest::DidInitialize().
-  virtual void DidInitialize() = 0;
-
   // Shows the context menu for the guest.
   // Returns true if the context menu was handled.
   virtual bool HandleContextMenu(const content::ContextMenuParams& params) = 0;
 
   virtual content::WebContents* OpenURLInNewTab(
       const content::OpenURLParams& params) = 0;
 
   ExtensionOptionsGuest* extension_options_guest() const { return guest_; }
 
  private:
   ExtensionOptionsGuest* const guest_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionOptionsGuestDelegate);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_DELEGATE_H_