Navigation: move RestoreType and ReloadType into a separate file

content/browser/android/web_contents_observer_proxy.h

Index: content/browser/android/web_contents_observer_proxy.h
diff --git a/content/browser/android/web_contents_observer_proxy.h b/content/browser/android/web_contents_observer_proxy.h
index af0895dc6693f3ea23fdda5d44268333e38b0639..6a93e545a1b31c5e9e2fda4223ab7da41ead7db0 100644
--- a/content/browser/android/web_contents_observer_proxy.h
+++ b/content/browser/android/web_contents_observer_proxy.h
@@ -69,9 +69,8 @@ class WebContentsObserverProxy : public WebContentsObserver {
   void DidAttachInterstitialPage() override;
   void DidDetachInterstitialPage() override;
   void DidChangeThemeColor(SkColor color) override;
-  void DidStartNavigationToPendingEntry(
-      const GURL& url,
-      NavigationController::ReloadType reload_type) override;
+  void DidStartNavigationToPendingEntry(const GURL& url,
+                                        ReloadType reload_type) override;
   void MediaSessionStateChanged(bool is_controllable,
                                 bool is_suspended,
                                 const MediaMetadata& metadata) override;