prune down content_dll change to just the CONTENT_EXPORTS

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
 
+#include "content/common/content_export.h"
+
 namespace IPC {
 class Message;
 }
 
 // Describes interface for managing devtools agents from the browser process.
 class DevToolsAgentHost {
  public:
-  class CloseListener {
+  class CONTENT_EXPORT 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_