Navigation: move RestoreType and ReloadType into a separate file

content/browser/frame_host/navigation_request.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_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 105 matching lines @@
   FrameTreeNode* frame_tree_node() const { return frame_tree_node_; }
 
   SiteInstanceImpl* source_site_instance() const {
     return source_site_instance_.get();
   }
 
   SiteInstanceImpl* dest_site_instance() const {
     return dest_site_instance_.get();
   }
 
-  NavigationEntryImpl::RestoreType restore_type() const {
-    return restore_type_;
-  };
+  RestoreType restore_type() const { return restore_type_; };
 
   bool is_view_source() const { return is_view_source_; };
 
   int bindings() const { return bindings_; };
 
   bool browser_initiated() const { return browser_initiated_ ; }
 
   void SetWaitingForRendererResponse() {
     DCHECK(state_ == NOT_STARTED);
     state_ = WAITING_FOR_RENDERER_RESPONSE;
@@ skipping 78 matching lines @@
   // |info_| after calling BeginNavigation.
   std::unique_ptr<NavigationRequestInfo> info_;
 
   std::unique_ptr<NavigationURLLoader> loader_;
 
   // These next items are used in browser-initiated navigations to store
   // information from the NavigationEntryImpl that is required after request
   // creation time.
   scoped_refptr<SiteInstanceImpl> source_site_instance_;
   scoped_refptr<SiteInstanceImpl> dest_site_instance_;
-  NavigationEntryImpl::RestoreType restore_type_;
+  RestoreType restore_type_;
   bool is_view_source_;
   int bindings_;
 
   // The type of SiteInstance associated with this navigation.
   AssociatedSiteInstanceType associated_site_instance_type_;
 
   std::unique_ptr<NavigationHandleImpl> navigation_handle_;
 
   // Holds the ResourceResponse and the StreamHandle for the navigation while
   // the WillProcessResponse checks are performed by the NavigationHandle.
   scoped_refptr<ResourceResponse> response_;
   std::unique_ptr<StreamHandle> body_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationRequest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_REQUEST_H_