Move the supervised user error page to a component

chrome/browser/supervised_user/supervised_user_navigation_observer.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 CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_NAVIGATION_OBSERVER_H_
 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_NAVIGATION_OBSERVER_H_
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "chrome/browser/supervised_user/supervised_user_service_observer.h"
 #include "chrome/browser/supervised_user/supervised_user_url_filter.h"
 #include "chrome/browser/supervised_user/supervised_users.h"
 #include "components/sessions/core/serialized_navigation_entry.h"
+#include "components/supervised_user_error_page/supervised_user_error_page.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 class SupervisedUserService;
 
 namespace content {
 class NavigationEntry;
 class WebContents;
 }
 
 class SupervisedUserNavigationObserver
     : public content::WebContentsUserData<SupervisedUserNavigationObserver>,
       public SupervisedUserServiceObserver {
  public:
   ~SupervisedUserNavigationObserver() override;
 
   const std::vector<const sessions::SerializedNavigationEntry*>*
   blocked_navigations() const {
     return &blocked_navigations_.get();
   }
 
   // Called when a network request to |url| is blocked.
   static void OnRequestBlocked(
       const content::ResourceRequestInfo::WebContentsGetter&
           web_contents_getter,
       const GURL& url,
-      SupervisedUserURLFilter::FilteringBehaviorReason reason,
+      supervised_user_error_page::FilteringBehaviorReason reason,
       const base::Callback<void(bool)>& callback);
 
   // SupervisedUserServiceObserver implementation.
   void OnURLFilterChanged() override;
 
   void URLFilterCheckCallback(
       const GURL& url,
       SupervisedUserURLFilter::FilteringBehavior behavior,
-      SupervisedUserURLFilter::FilteringBehaviorReason reason,
+      supervised_user_error_page::FilteringBehaviorReason reason,
       bool uncertain);
 
  private:
   friend class content::WebContentsUserData<SupervisedUserNavigationObserver>;
 
   explicit SupervisedUserNavigationObserver(content::WebContents* web_contents);
 
   void OnRequestBlockedInternal(const GURL& url);
 
   content::WebContents* web_contents_;
 
   // Owned by SupervisedUserService.
   const SupervisedUserURLFilter* url_filter_;
 
   // Owned by SupervisedUserServiceFactory (lifetime of Profile).
   SupervisedUserService* supervised_user_service_;
 
   ScopedVector<const sessions::SerializedNavigationEntry> blocked_navigations_;
 
   base::WeakPtrFactory<SupervisedUserNavigationObserver> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserNavigationObserver);
 };
 
 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_NAVIGATION_OBSERVER_H_