Move webNavigation extension api into a separate directory

chrome/browser/extensions/extension_webnavigation_api_constants.h

Index: chrome/browser/extensions/extension_webnavigation_api_constants.h
diff --git a/chrome/browser/extensions/extension_webnavigation_api_constants.h b/chrome/browser/extensions/extension_webnavigation_api_constants.h
deleted file mode 100644
index 27f305254b714441d3410c823755a0e5429294a6..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_webnavigation_api_constants.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011 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.
-
-// Constants used for the WebNavigation API.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBNAVIGATION_API_CONSTANTS_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBNAVIGATION_API_CONSTANTS_H_
-#pragma once
-
-namespace extension_webnavigation_api_constants {
-
-// Keys.
-extern const char kErrorKey[];
-extern const char kErrorOccurredKey[];
-extern const char kFrameIdKey[];
-extern const char kSourceTabIdKey[];
-extern const char kSourceFrameIdKey[];
-extern const char kTabIdKey[];
-extern const char kTimeStampKey[];
-extern const char kTransitionTypeKey[];
-extern const char kTransitionQualifiersKey[];
-extern const char kUrlKey[];
-
-// Events.
-extern const char kOnBeforeNavigate[];
-extern const char kOnCommitted[];
-extern const char kOnCompleted[];
-extern const char kOnCreatedNavigationTarget[];
-extern const char kOnDOMContentLoaded[];
-extern const char kOnErrorOccurred[];
-extern const char kOnReferenceFragmentUpdated[];
-
-}  // namespace extension_webnavigation_api_constants
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBNAVIGATION_API_CONSTANTS_H_