DevTools: introduce DevToolsAgentHost

content/browser/debugger/devtools_agent_host.h

+// Copyright (c) 2011 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 CONTENT_BROWSER_DEBUGGER_DEVTOOLS_AGENT_HOST_H_
+#define CONTENT_BROWSER_DEBUGGER_DEVTOOLS_AGENT_HOST_H_
+#pragma once
+
+namespace IPC {
+class Message;
+}
+
+// Describes interface for managing devtools agents from the browser process.
+class DevToolsAgentHost {
+ public:
+  class CloseListener {
+   public:
+    virtual void AgentHostClosing(DevToolsAgentHost*) = 0;
+   protected:
+    virtual ~CloseListener() {}
+  };
+
+  // Sends the message to the devtools agent hosted by this object.
+  virtual void SendMessageToAgent(IPC::Message* msg) = 0;
+
+  // TODO(yurys): get rid of this method
+  virtual void NotifyClientClosing() = 0;
+
+  virtual int GetRenderProcessId() = 0;
+
+  void set_close_listener(CloseListener* listener) {
+    close_listener_ = listener;
+  }
+
+ protected:
+  DevToolsAgentHost();
+  virtual ~DevToolsAgentHost() {}
+
+  void NotifyCloseListener();
+
+  CloseListener* close_listener_;
+};
+
+#endif  // CONTENT_BROWSER_DEBUGGER_DEVTOOLS_AGENT_HOST_H_