[DevTools] Pass session id in detach request

third_party/WebKit/Source/web/WebDevToolsAgentImpl.cpp

 /*
  * Copyright (C) 2010-2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 279 matching lines @@
   visitor->Trace(trace_events_agent_);
   visitor->Trace(overlay_agent_);
   visitor->Trace(session_);
 }
 
 void WebDevToolsAgentImpl::WillBeDestroyed() {
   DCHECK(web_local_frame_impl_->GetFrame());
   DCHECK(inspected_frames_->Root()->View());
   instrumenting_agents_->removeInspectorTraceEvents(trace_events_agent_);
   trace_events_agent_ = nullptr;
-  Detach();
+  if (session_)
+    Detach(session_->SessionId());
   resource_content_loader_->Dispose();
   client_ = nullptr;
 }
 
 void WebDevToolsAgentImpl::InitializeSession(int session_id,
                                              const String& host_id,
                                              String* state) {
   DCHECK(client_);
   ClientMessageLoopAdapter::EnsureMainThreadDebuggerCreated(client_);
   MainThreadDebugger* main_thread_debugger = MainThreadDebugger::Instance();
@@ skipping 110 matching lines @@
 void WebDevToolsAgentImpl::Reattach(const WebString& host_id,
                                     int session_id,
                                     const WebString& saved_state) {
   if (Attached())
     return;
   String state = saved_state;
   InitializeSession(session_id, host_id, &state);
   session_->Restore();
 }
 
-void WebDevToolsAgentImpl::Detach() {
-  if (!Attached())
+void WebDevToolsAgentImpl::Detach(int session_id) {
+  if (!Attached() || session_id != session_->SessionId())
     return;
   DestroySession();
 }
 
 void WebDevToolsAgentImpl::ContinueProgram() {
   ClientMessageLoopAdapter::ContinueProgram();
 }
 
 void WebDevToolsAgentImpl::DidCommitLoadForLocalFrame(LocalFrame* frame) {
   resource_container_->DidCommitLoadForLocalFrame(frame);
@@ skipping 189 matching lines @@
 }
 
 bool WebDevToolsAgent::ShouldInterruptForMethod(const WebString& method) {
   return method == "Debugger.pause" || method == "Debugger.setBreakpoint" ||
          method == "Debugger.setBreakpointByUrl" ||
          method == "Debugger.removeBreakpoint" ||
          method == "Debugger.setBreakpointsActive";
 }
 
 }  // namespace blink