Add new ExtensionManagement preference

New ExtensionManagement preference is a policy-controlled dictionary preference for management of extensions.
Current implementation covers all legacy extension management preference (installation_mode, install_sources, allowed_types).

This CL includes extension preference parsing, definition of constants strings for properties/string enums in the new dictionary value, and a test helper class for manipulating it in unit tests.

BUG=177351

Review URL: https://codereview.chromium.org/559603002

Cr-Commit-Position: refs/heads/master@{#295974}

1 files changed, 47 insertions, 0 deletions

diff --git a/chrome/browser/extensions/extension_management_constants.h b/chrome/browser/extensions/extension_management_constants.h
new file mode 100644
index 0000000..63a50aa
--- /dev/null
+++ b/chrome/browser/extensions/extension_management_constants.h
@@ -0,0 +1,47 @@
+// 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_