[DevTools] Make DevTools clients talk directly to DevToolsAgentHost instead of using DevToolsManage…

content/public/browser/devtools_agent_host_client.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 CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_CLIENT_H_
+#define CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_CLIENT_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "content/common/content_export.h"
+
+namespace content {
+
+class DevToolsAgentHost;
+
+// DevToolsAgentHostClient can attach to a DevToolsAgentHost and start
+// debugging it.
+class CONTENT_EXPORT DevToolsAgentHostClient {
+ public:
+  virtual ~DevToolsAgentHostClient() {}
+
+  // Dispatches given protocol message on the client.
+  virtual void DispatchProtocolMessage(DevToolsAgentHost* agent_host,
+                                       const std::string& message) = 0;
+
+  // This method is called when attached agent host is closed.
+  virtual void AgentHostClosed(DevToolsAgentHost* agent_host,
+                               bool replaced_with_another_client) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_CLIENT_H_