Move PolicyLoaderMac::CreateValueFromProperty to a generic file.

components/policy/core/common/mac_util.h

+// Copyright (c) 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 COMPONENTS_POLICY_CORE_COMMON_MAC_UTIL_H_
+#define COMPONENTS_POLICY_CORE_COMMON_MAC_UTIL_H_
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "components/policy/policy_export.h"
+
+// This file contains utilities shared by both Mac OS X and iOS.
+
+namespace base {
+class Value;
+}
+
+namespace policy {
+
+// Converts a CFPropertyListRef to the equivalent base::Value. CFDictionary
+// entries whose key is not a CFStringRef are ignored.

[dconnelly, 2014/03/04 21:13:36]

why?

[Joao da Silva, 2014/03/04 23:18:01]

Because that's supported in CFDictionaries but not in base::DictionaryValues.

The Chrome app manifest (which declares the supported managed settings on Mac)
restricts the keys to strings, so no valid policy configuration will have
anything other than strings as keys.

+// Returns NULL if an invalid CFType was found, such as CFDate or CFData.
+// NSDictionary is toll-free bridged to CFDictionaryRef, which is a
+// CFPropertyListRef, so it can also be passed directly here. Same for the
+// other NS* classes that map to CF* properties.
+POLICY_EXPORT scoped_ptr<base::Value> PropertyToValue(
+    CFPropertyListRef property);
+
+}  // namespace policy
+
+#endif  // COMPONENTS_POLICY_CORE_COMMON_MAC_UTIL_H_