Move SystemIndicator parsing out of Extension class

chrome/common/extensions/api/system_indicator/system_indicator_handler.cc

+// 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.
+
+#include "chrome/common/extensions/api/system_indicator/system_indicator_handler.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/common/extensions/api/extension_action/action_info.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
+#include "chrome/common/extensions/permissions/api_permission_set.h"
+
+namespace extensions {
+
+SystemIndicatorHandler::SystemIndicatorHandler() {
+}
+
+SystemIndicatorHandler::~SystemIndicatorHandler() {
+}
+
+bool SystemIndicatorHandler::Parse(Extension* extension, string16* error) {
+  const DictionaryValue* system_indicator_value = NULL;
+  if (!extension->manifest()->GetDictionary(
+          extension_manifest_keys::kSystemIndicator, &system_indicator_value)) {
+    *error = ASCIIToUTF16(extension_manifest_errors::kInvalidSystemIndicator);
+    return false;
+  }
+
+  scoped_ptr<ActionInfo> action_info = ActionInfo::Load(
+      extension, system_indicator_value, error);
+
+  if (!action_info.get())
+    return false;
+
+  // Because the manifest was successfully parsed, auto-grant the permission.
+  // TODO(dewittj) Add this for all extension action APIs.
+  extension->initial_api_permissions()->insert(APIPermission::kSystemIndicator);
+
+  ActionInfo::SetSystemIndicatorInfo(extension, action_info.release());
+  return true;
+}
+
+const std::vector<std::string> SystemIndicatorHandler::Keys() const {
+  return SingleKey(extension_manifest_keys::kSystemIndicator);
+}
+
+}  // namespace extensions