Extension activity log database refactoring (step 3)

chrome/browser/extensions/activity_log/activity_action_constants.h

+// Copyright (c) 2013 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.
+
+// String constants used when logging data in the extension activity log.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_ACTION_CONSTANTS_H_
+#define CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_ACTION_CONSTANTS_H_
+
+namespace activity_log_constants {
+
+// Keys that may be used in the "other" attribute of an Action.
+extern const char kActionBlockedReason[];
+extern const char kActionDomVerb[];
+extern const char kActionExtra[];
+extern const char kActionWebRequest[];
+
+}  // namespace activity_log_constants
+
+#endif  // CHROME_BROWSER_EXTENSIONS_ACTIVITY_LOG_ACTIVITY_ACTION_CONSTANTS_H_