Navigation: move RestoreType and ReloadType into a separate file

content/public/browser/web_contents_observer.h

 // Copyright (c) 2012 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_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 174 matching lines @@
   // This method is invoked after the browser process starts a navigation to a
   // pending NavigationEntry. It is not called for renderer-initiated
   // navigations unless they are sent to the browser process via OpenURL. It may
   // be called multiple times for a given navigation, such as a typed URL
   // followed by a cross-process client or server redirect.
   //
   // SOON TO BE DEPRECATED. Use DidStartNavigation instead in PlzNavigate. In
   // default mode, it is still necessary to override this function to be
   // notified about a navigation earlier than DidStartProvisionalLoad. This
   // function will be removed when PlzNavigate is enabled.
-  virtual void DidStartNavigationToPendingEntry(
-      const GURL& url,
-      NavigationController::ReloadType reload_type) {}
+  virtual void DidStartNavigationToPendingEntry(const GURL& url,
+                                                ReloadType reload_type) {}
 
   // |render_frame_host| is the RenderFrameHost for which the provisional load
   // is happening.
   //
   // Since the URL validation will strip error URLs, or srcdoc URLs, the boolean
   // flags |is_error_page| and |is_iframe_srcdoc| will indicate that the not
   // validated URL was either an error page or an iframe srcdoc.
   //
   // Note that during a cross-process navigation, several provisional loads
   // can be on-going in parallel.
@@ skipping 297 matching lines @@
   void ResetWebContents();
 
   WebContentsImpl* web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_OBSERVER_H_