content::ReloadType cleanup: make NORMAL behave as MAIN_RESOURCE

content/public/browser/reload_type.h

 // Copyright 2016 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_RELOAD_TYPE_H_
 #define CONTENT_PUBLIC_BROWSER_RELOAD_TYPE_H_
 
 namespace content {
 
 // Used to specify detailed behavior on requesting reloads. NONE is used in
 // general, but behaviors depend on context. If NONE is used for tab restore, or
 // history navigation, it loads preferring cache (which may be stale).
 enum class ReloadType {
   NONE,                  // Normal load, restore, or history navigation.
-  NORMAL,                // Normal (cache-validating) reload.
-  MAIN_RESOURCE,         // Reload validating only the main resource.
+  NORMAL,                // Reload validating only the main resource.
   BYPASSING_CACHE,       // Reload bypassing the cache (shift-reload).
   ORIGINAL_REQUEST_URL,  // Reload using the original request URL.
   DISABLE_LOFI_MODE      // Reload with Lo-Fi mode disabled.
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RELOAD_TYPE_H_