Navigation: move RestoreType and ReloadType into a separate file

content/browser/web_contents/aura/overscroll_navigation_overlay_unittest.cc

 // 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.
 
 #include "content/browser/web_contents/aura/overscroll_navigation_overlay.h"
 
 #include <string.h>
 #include <utility>
 #include <vector>
 
@@ skipping 22 matching lines @@
 
 // Forces web contents to complete web page load as soon as navigation starts.
 class ImmediateLoadObserver : WebContentsObserver {
  public:
   explicit ImmediateLoadObserver(TestWebContents* contents)
       : contents_(contents) {
     Observe(contents);
   }
   ~ImmediateLoadObserver() override {}
 
-  void DidStartNavigationToPendingEntry(
-      const GURL& url,
-      NavigationController::ReloadType reload_type) override {
+  void DidStartNavigationToPendingEntry(const GURL& url,
+                                        ReloadType reload_type) override {
     // Simulate immediate web page load.
     contents_->TestSetIsLoading(false);
     Observe(nullptr);
   }
 
  private:
   TestWebContents* contents_;
 
   DISALLOW_COPY_AND_ASSIGN(ImmediateLoadObserver);
 };
@@ skipping 385 matching lines @@
   EXPECT_TRUE(GetOverlay()->window_.get());
 
   // Load the page.
   contents()->CommitPendingNavigation();
   ReceivePaintUpdate();
   EXPECT_FALSE(GetOverlay()->window_.get());
   EXPECT_EQ(contents()->GetURL(), first());
 }
 
 }  // namespace content