Move webNavigation extension api into a separate directory

chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h

Index: chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h
diff --git a/chrome/browser/extensions/extension_webnavigation_api_constants.h b/chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h
similarity index 64%
rename from chrome/browser/extensions/extension_webnavigation_api_constants.h
rename to chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h
index 27f305254b714441d3410c823755a0e5429294a6..bfb4b3a8103de76a5cdf63e515685302cb1809e9 100644
--- a/chrome/browser/extensions/extension_webnavigation_api_constants.h
+++ b/chrome/browser/extensions/api/web_navigation/web_navigation_api_constants.h
@@ -1,14 +1,16 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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_
+#ifndef CHROME_BROWSER_EXTENSIONS_API_WEB_NAVIGATION_WEB_NAVIGATION_API_CONSTANTS_H_
+#define CHROME_BROWSER_EXTENSIONS_API_WEB_NAVIGATION_WEB_NAVIGATION_API_CONSTANTS_H_
 #pragma once
 
-namespace extension_webnavigation_api_constants {
+namespace extensions {
+
+namespace web_navigation_api_constants {
 
 // Keys.
 extern const char kErrorKey[];
@@ -31,6 +33,8 @@ extern const char kOnDOMContentLoaded[];
 extern const char kOnErrorOccurred[];
 extern const char kOnReferenceFragmentUpdated[];
 
-}  // namespace extension_webnavigation_api_constants
+}  // namespace web_navigation_api_constants
+
+}  // namespace extensions
 
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBNAVIGATION_API_CONSTANTS_H_
+#endif  // CHROME_BROWSER_EXTENSIONS_API_WEB_NAVIGATION_WEB_NAVIGATION_API_CONSTANTS_H_