Added a PolicyManifestHandler.

chrome/browser/extensions/api/storage/storage_schema_manifest_handler.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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_
+
+#include "base/basictypes.h"
+#include "chrome/common/extensions/manifest_handler.h"
+
+namespace policy {
+class PolicySchema;
+}
+
+namespace extensions {
+
+// Handles the "storage.managed_schema" manifest key.
+class StorageSchemaManifestHandler : public ManifestHandler {
+ public:
+  StorageSchemaManifestHandler();
+  virtual ~StorageSchemaManifestHandler();
+
+  // Returns the managed storage schema defined for |extension|.
+  // If the schema is invalid then NULL is returned, and the failure reason
+  // is stored in |error|.
+  // This function does file I/O and must be called on a thread that allows I/O.
+  static scoped_ptr<policy::PolicySchema> GetSchema(const Extension* extension,
+                                                    std::string* error);
+
+ private:
+  // ManifestHandler implementation:
+  virtual bool Parse(Extension* extension, string16* error) OVERRIDE;
+  virtual bool Validate(const Extension* extension,
+                        std::string* error,
+                        std::vector<InstallWarning>* warnings) const OVERRIDE;
+  virtual const std::vector<std::string> Keys() const OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(StorageSchemaManifestHandler);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_STORAGE_STORAGE_SCHEMA_MANIFEST_HANDLER_H_