Add new ExtensionManagement preference

chrome/browser/extensions/extension_management_constants.h

Index: chrome/browser/extensions/extension_management_constants.h
diff --git a/chrome/browser/extensions/extension_management_constants.h b/chrome/browser/extensions/extension_management_constants.h
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index 0000000000000000000000000000000000000000..63a50aad503a6be22e07affd9754181d30acd049
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+++ b/chrome/browser/extensions/extension_management_constants.h
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+// Copyright 2014 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGEMENT_CONSTANTS_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGEMENT_CONSTANTS_H_
+
+#include <string>
+
+#include "extensions/common/manifest.h"
+
+namespace extensions {
+namespace schema_constants {
+
+extern const char kWildcard[];
+
+extern const char kInstallationMode[];
+extern const char kAllowed[];
+extern const char kBlocked[];
+extern const char kForceInstalled[];
+extern const char kNormalInstalled[];
+
+extern const char kUpdateUrl[];
+extern const char kInstallSources[];
+extern const char kAllowedTypes[];
+
+extern const char kUpdateUrlPrefix[];
+
+struct AllowedTypesMapEntry {
+  // Name of allowed types of extensions used in schema of extension
+  // management preference.
+  const char* name;
+  // The corresponding Manifest::Type.
+  Manifest::Type manifest_type;
+};
+
+extern const size_t kAllowedTypesMapSize;
+extern const AllowedTypesMapEntry kAllowedTypesMap[];
+
+// Helper fuction over |kAllowedTypesMap|, returns Manifest::TYPE_UNKNOWN if
+// not found.
+Manifest::Type GetManifestType(const std::string& name);
+
+}  // namespace schema_constants
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MANAGEMENT_CONSTANTS_H_