[DevTools] Pass client initiating DevToolsAgentHost::inspectElement.

content/renderer/devtools/devtools_agent.h

 // Copyright (c) 2012 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_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 #define CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 70 matching lines @@
 
   void OnAttach(const std::string& host_id, int session_id);
   void OnReattach(const std::string& host_id,
                   int session_id,
                   const std::string& agent_state);
   void OnDetach();
   void OnDispatchOnInspectorBackend(int session_id,
                                     int call_id,
                                     const std::string& method,
                                     const std::string& message);
-  void OnInspectElement(int x, int y);
+  void OnInspectElement(int session_id, int x, int y);
   void OnRequestNewWindowACK(bool success);
   void ContinueProgram();
   void OnSetupDevToolsClient(const std::string& compatibility_script);
 
   void GotManifest(int session_id,
                    int command_id,
                    const GURL& manifest_url,
                    const Manifest& manifest,
                    const ManifestDebugInfo& debug_info);
 
   bool is_attached_;
   bool is_devtools_client_;
   bool paused_in_mouse_move_;
   bool paused_;
   RenderFrameImpl* frame_;
   base::Callback<void(int, int, const std::string&, const std::string&)>
       send_protocol_message_callback_for_test_;
   std::unique_ptr<DevToolsCPUThrottler> cpu_throttler_;
   base::WeakPtrFactory<DevToolsAgent> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgent);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_