Add managed policies for Native Messaging

This adds two new policies that will allow to block all or some native
messaging hosts.

BUG=237882

Review URL: https://codereview.chromium.org/118253005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243774 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 52 insertions, 0 deletions

diff --git a/chrome/browser/extensions/api/messaging/native_messaging_policy_handler.h b/chrome/browser/extensions/api/messaging/native_messaging_policy_handler.h
new file mode 100644
index 0000000..6cd3a8e
--- /dev/null
+++ b/chrome/browser/extensions/api/messaging/native_messaging_policy_handler.h
@@ -0,0 +1,52 @@
+// 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_API_MESSAGING_NATIVE_MESSAGING_POLICY_HANDLER_H_
+#define CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_MESSAGING_POLICY_HANDLER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "components/policy/core/browser/configuration_policy_handler.h"
+
+namespace policy {
+class PolicyMap;
+class PolicyErrorMap;
+}  // namespace policy
+
+namespace extensions {
+
+// Implements additional checks for policies that are lists of Native Messaging
+// Hosts.
+class NativeMessagingHostListPolicyHandler
+    : public policy::TypeCheckingPolicyHandler {
+ public:
+  NativeMessagingHostListPolicyHandler(const char* policy_name,
+                                       const char* pref_path,
+                                       bool allow_wildcards);
+  virtual ~NativeMessagingHostListPolicyHandler();
+
+  // ConfigurationPolicyHandler methods:
+  virtual bool CheckPolicySettings(const policy::PolicyMap& policies,
+                                   policy::PolicyErrorMap* errors) OVERRIDE;
+  virtual void ApplyPolicySettings(const policy::PolicyMap& policies,
+                                   PrefValueMap* prefs) OVERRIDE;
+
+ protected:
+  const char* pref_path() const;
+
+  // Runs sanity checks on the policy value and returns it in |extension_ids|.
+  bool CheckAndGetList(const policy::PolicyMap& policies,
+                       policy::PolicyErrorMap* errors,
+                       scoped_ptr<base::ListValue>* extension_ids);
+
+ private:
+  const char* pref_path_;
+  bool allow_wildcards_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeMessagingHostListPolicyHandler);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_MESSAGING_POLICY_HANDLER_H_