Navigation: move RestoreType and ReloadType into a separate file

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 91226f87578512b1516706f852f25c009a18c5af..c7f20718e33ebbd302b65bafe6d7627fb06acffc 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -573,9 +573,8 @@ class CONTENT_EXPORT WebContentsImpl
   void SetMainFrameMimeType(const std::string& mime_type) override;
   bool CanOverscrollContent() const override;
   void NotifyChangedNavigationState(InvalidateTypes changed_flags) override;
-  void DidStartNavigationToPendingEntry(
-      const GURL& url,
-      NavigationController::ReloadType reload_type) override;
+  void DidStartNavigationToPendingEntry(const GURL& url,
+                                        ReloadType reload_type) override;
   void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
                       const OpenURLParams& params) override;
   bool ShouldTransferNavigation() override;