Navigation: move RestoreType and ReloadType into a separate file

content/browser/frame_host/navigator.h

Index: content/browser/frame_host/navigator.h
diff --git a/content/browser/frame_host/navigator.h b/content/browser/frame_host/navigator.h
index 7270a7c4234c0616f291fc37111efb18ff3b3842..f0cfa5420ded73ed1c56810925e86f060062b42f 100644
--- a/content/browser/frame_host/navigator.h
+++ b/content/browser/frame_host/navigator.h
@@ -90,11 +90,10 @@ class CONTENT_EXPORT Navigator : public base::RefCounted<Navigator> {
   // TODO(nasko): Remove this method from the interface, since Navigator and
   // NavigationController know about each other. This will be possible once
   // initialization of Navigator and NavigationController is properly done.
-  virtual bool NavigateToPendingEntry(
-      FrameTreeNode* frame_tree_node,
-      const FrameNavigationEntry& frame_entry,
-      NavigationController::ReloadType reload_type,
-      bool is_same_document_history_load);
+  virtual bool NavigateToPendingEntry(FrameTreeNode* frame_tree_node,
+                                      const FrameNavigationEntry& frame_entry,
+                                      ReloadType reload_type,
+                                      bool is_same_document_history_load);
 
   // Called on a newly created subframe during a history navigation. The browser
   // process looks up the corresponding FrameNavigationEntry for the new frame