Move webNavigation extension api into a separate directory

chrome/browser/extensions/extension_webnavigation_api_constants.cc

Index: chrome/browser/extensions/extension_webnavigation_api_constants.cc
diff --git a/chrome/browser/extensions/extension_webnavigation_api_constants.cc b/chrome/browser/extensions/extension_webnavigation_api_constants.cc
deleted file mode 100644
index e57ebd55b5552657f6c21495fe1a6dc1c745d742..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_webnavigation_api_constants.cc
+++ /dev/null
@@ -1,31 +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.
-
-#include "chrome/browser/extensions/extension_webnavigation_api_constants.h"
-
-namespace extension_webnavigation_api_constants {
-
-const char kErrorKey[] = "error";
-const char kErrorOccurredKey[] = "errorOccurred";
-const char kFrameIdKey[] = "frameId";
-const char kSourceTabIdKey[] = "sourceTabId";
-const char kSourceFrameIdKey[] = "sourceFrameId";
-const char kTabIdKey[] = "tabId";
-const char kTimeStampKey[] = "timeStamp";
-const char kTransitionTypeKey[] = "transitionType";
-const char kTransitionQualifiersKey[] = "transitionQualifiers";
-const char kUrlKey[] = "url";
-
-const char kOnBeforeNavigate[] = "webNavigation.onBeforeNavigate";
-const char kOnCommitted[] = "webNavigation.onCommitted";
-const char kOnCompleted[] = "webNavigation.onCompleted";
-const char kOnCreatedNavigationTarget[] =
-    "webNavigation.onCreatedNavigationTarget";
-const char kOnDOMContentLoaded[] =
-    "webNavigation.onDOMContentLoaded";
-const char kOnErrorOccurred[] = "webNavigation.onErrorOccurred";
-const char kOnReferenceFragmentUpdated[] =
-    "webNavigation.onReferenceFragmentUpdated";
-
-}  // namespace extension_webnavigation_api_constants