Move navigation and frame tree classes to a new frame_host/ directory.

content/browser/web_contents/navigation_controller_delegate.h

-// Copyright 2013 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_BROWSER_WEB_CONTENTS_NAVIGATION_CONTROLLER_DELEGATE_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_CONTROLLER_DELEGATE_H_
-
-#include <string>
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/navigation_details.h"
-
-namespace content {
-
-struct LoadCommittedDetails;
-struct LoadNotificationDetails;
-struct NativeWebKeyboardEvent;
-class InterstitialPage;
-class InterstitialPageImpl;
-class RenderViewHost;
-class SiteInstance;
-class WebContents;
-class WebContentsDelegate;
-
-// Interface for objects embedding a NavigationController to provide the
-// functionality NavigationController needs.
-// TODO(nasko): This interface should exist for short amount of time, while
-// we transition navigation code from WebContents to Navigator.
-class NavigationControllerDelegate {
- public:
-  virtual ~NavigationControllerDelegate() {}
-
-  // Duplicates of WebContents methods.
-  virtual RenderViewHost* GetRenderViewHost() const = 0;
-  virtual InterstitialPage* GetInterstitialPage() const = 0;
-  virtual const std::string& GetContentsMimeType() const = 0;
-  virtual void NotifyNavigationStateChanged(unsigned changed_flags) = 0;
-  virtual void Stop() = 0;
-  virtual SiteInstance* GetSiteInstance() const = 0;
-  virtual SiteInstance* GetPendingSiteInstance() const = 0;
-  virtual int32 GetMaxPageID() = 0;
-  virtual int32 GetMaxPageIDForSiteInstance(SiteInstance* site_instance) = 0;
-  virtual bool IsLoading() const = 0;
-
-  // Methods from WebContentsImpl that NavigationControllerImpl needs to
-  // call.
-  virtual void NotifyBeforeFormRepostWarningShow() = 0;
-  virtual void NotifyNavigationEntryCommitted(
-      const LoadCommittedDetails& load_details) = 0;
-  virtual bool NavigateToPendingEntry(
-      NavigationController::ReloadType reload_type) = 0;
-  virtual void SetHistoryLengthAndPrune(
-      const SiteInstance* site_instance,
-      int merge_history_length,
-      int32 minimum_page_id) = 0;
-  virtual void CopyMaxPageIDsFrom(WebContents* web_contents) = 0;
-  virtual void UpdateMaxPageID(int32 page_id) = 0;
-  virtual void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance,
-                                              int32 page_id) = 0;
-  virtual void ActivateAndShowRepostFormWarningDialog() = 0;
-
-  // This method is needed, since we are no longer guaranteed that the
-  // embedder for NavigationController will be a WebContents object.
-  virtual WebContents* GetWebContents() = 0;
-
-  // Methods needed by InterstitialPageImpl.
-  virtual bool IsHidden() = 0;
-  virtual void RenderViewForInterstitialPageCreated(
-      RenderViewHost* render_view_host) = 0;
-  virtual void AttachInterstitialPage(
-      InterstitialPageImpl* interstitial_page) = 0;
-  virtual void DetachInterstitialPage() = 0;
-  virtual void SetIsLoading(RenderViewHost* render_view_host,
-                            bool is_loading,
-                            LoadNotificationDetails* details) = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_CONTROLLER_DELEGATE_H_