Revert of [DevTools] Filter any messages from previous sessions in DevToolsAgentHostImpl

content/renderer/service_worker/embedded_worker_devtools_agent.cc

 // 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.
 
 #include "content/renderer/service_worker/embedded_worker_devtools_agent.h"
 
 #include "content/common/devtools_messages.h"
 #include "content/renderer/render_thread_impl.h"
 #include "third_party/WebKit/public/platform/WebCString.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ skipping 22 matching lines @@
   IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Attach, OnAttach)
   IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Reattach, OnReattach)
   IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Detach, OnDetach)
   IPC_MESSAGE_HANDLER(DevToolsAgentMsg_DispatchOnInspectorBackend,
                       OnDispatchOnInspectorBackend)
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void EmbeddedWorkerDevToolsAgent::OnAttach(const std::string& host_id,
-                                           int session_id) {
-  webworker_->attachDevTools(WebString::fromUTF8(host_id), session_id);
+void EmbeddedWorkerDevToolsAgent::OnAttach(const std::string& host_id) {
+  webworker_->attachDevTools(WebString::fromUTF8(host_id));
 }
 
 void EmbeddedWorkerDevToolsAgent::OnReattach(const std::string& host_id,
-                                             int session_id,
                                              const std::string& state) {
-  webworker_->reattachDevTools(WebString::fromUTF8(host_id), session_id,
+  webworker_->reattachDevTools(WebString::fromUTF8(host_id),
                                WebString::fromUTF8(state));
 }
 
 void EmbeddedWorkerDevToolsAgent::OnDetach() {
   webworker_->detachDevTools();
 }
 
 void EmbeddedWorkerDevToolsAgent::OnDispatchOnInspectorBackend(
-    int session_id,
     const std::string& message) {
-  webworker_->dispatchDevToolsMessage(session_id, WebString::fromUTF8(message));
+  webworker_->dispatchDevToolsMessage(WebString::fromUTF8(message));
 }
 
 }  // namespace content