chrome: Cleanup class/struct forward declarations

chrome/browser/devtools/devtools_network_protocol_handler.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 CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_PROTOCOL_HANDLER_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_PROTOCOL_HANDLER_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/devtools/devtools_protocol.h"
 
 namespace content {
 class DevToolsAgentHost;
 }
 
 class DevToolsNetworkConditions;
-class Profile;
 
 class DevToolsNetworkProtocolHandler {
  public:
   DevToolsNetworkProtocolHandler();
   ~DevToolsNetworkProtocolHandler();
 
   void DevToolsAgentStateChanged(content::DevToolsAgentHost* agent_host,
                                  bool attached);
   base::DictionaryValue* HandleCommand(
       content::DevToolsAgentHost* agent_host,
@@ skipping 11 matching lines @@
       base::DictionaryValue* params);
 
   void UpdateNetworkState(
       content::DevToolsAgentHost* agent_host,
       std::unique_ptr<DevToolsNetworkConditions> conditions);
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsNetworkProtocolHandler);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_PROTOCOL_HANDLER_H_