Implement an IsAllowed function in the pepper PPB_Broker_Trusted API

ppapi/proxy/broker_resource.cc

+// Copyright (c) 2012 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 "ppapi/proxy/broker_resource.h"
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/proxy/ppapi_messages.h"
+
+namespace ppapi {
+namespace proxy {
+
+BrokerResource::BrokerResource(Connection connection, PP_Instance instance)
+    : PluginResource(connection, instance) {
+  SendCreate(BROWSER, PpapiHostMsg_Broker_Create());
+}
+
+BrokerResource::~BrokerResource() {
+}
+
+thunk::PPB_Broker_Instance_API* BrokerResource::AsPPB_Broker_Instance_API() {
+  return this;
+}
+
+PP_Bool BrokerResource::IsAllowed() {
+  int32_t result =
+      SyncCall<IPC::Message>(BROWSER, PpapiHostMsg_Broker_IsAllowed());
+  return PP_FromBool(result == PP_OK);
+}
+
+}  // namespace proxy
+}  // namespace ppapi