[NaCl SDK] nacl_io: Add new fakes

native_client_sdk/src/tests/nacl_io_test/fake_messaging_interface.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 TESTS_NACL_IO_TEST_FAKE_MESSAGING_INTERFACE_H_
+#define TESTS_NACL_IO_TEST_FAKE_MESSAGING_INTERFACE_H_
+
+#include <string>
+#include <vector>
+
+#include "nacl_io/pepper_interface.h"
+#include "sdk_util/macros.h"
+
+class FakeVarManager;
+
+// Fake version of the MessagingInterface which simply records any
+// messages sent to it via PostMessage and makes them available as
+// a std::vector of std::string.
+class FakeMessagingInterface : public nacl_io::MessagingInterface {
+ public:
+  FakeMessagingInterface(FakeVarManager* manager,
+                         nacl_io::VarInterface* var_interface);
+  ~FakeMessagingInterface();
+
+  virtual void PostMessage(PP_Instance instance, PP_Var message);
+
+  std::vector<PP_Var> messages;
+ private:
+  FakeVarManager* manager_;
+  nacl_io::VarInterface* var_interface_;
+  DISALLOW_COPY_AND_ASSIGN(FakeMessagingInterface);
+};
+
+#endif  // TESTS_NACL_IO_TEST_FAKE_MESSAGING_INTERFACE_H_