Introduce ChannelMojo

ipc/ipc_test_channel_listener.h

+// 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 IPC_IPC_TEST_CHANNEL_LISTENER_H_
+#define IPC_IPC_TEST_CHANNEL_LISTENER_H_
+
+#include "ipc/ipc_listener.h"
+
+namespace IPC {
+
+class Sender;
+
+// A generic listener that expects messages of a certain type (see
+// OnMessageReceived()), and either sends a generic response or quits after the
+// 50th message (or on channel error).
+class TestChannelListener : public Listener {
+ public:
+  static const size_t kLongMessageStringNumBytes = 50000;
+  static void SendOneMessage(Sender* sender, const char* text);
+
+  TestChannelListener() : sender_(NULL), messages_left_(50) {}
+  virtual ~TestChannelListener() {}
+
+  virtual bool OnMessageReceived(const Message& message) OVERRIDE;
+  virtual void OnChannelError() OVERRIDE;
+
+  void Init(Sender* s) {
+    sender_ = s;
+  }
+
+  bool HasSentAll() const { return 0 == messages_left_; }
+
+ protected:
+  void SendNextMessage();
+
+ private:
+  Sender* sender_;
+  int messages_left_;
+};
+
+}
+
+#endif // IPC_IPC_TEST_CHANNEL_LISTENER_H_