[DevTools] filter any messages from previous session in DevToolsAgentHostImpl

content/browser/devtools/browser_devtools_agent_host.cc

Index: content/browser/devtools/browser_devtools_agent_host.cc
diff --git a/content/browser/devtools/browser_devtools_agent_host.cc b/content/browser/devtools/browser_devtools_agent_host.cc
index d045571b7377acf45f3d5557a382ecadd23014b2..d7c342307db242756626195d1250be64a18f4190 100644
--- a/content/browser/devtools/browser_devtools_agent_host.cc
+++ b/content/browser/devtools/browser_devtools_agent_host.cc
@@ -31,10 +31,7 @@ BrowserDevToolsAgentHost::BrowserDevToolsAgentHost(
                                                     tethering_task_runner)),
       tracing_handler_(new devtools::tracing::TracingHandler(
           devtools::tracing::TracingHandler::Browser, GetIOContext())),
-      protocol_handler_(new DevToolsProtocolHandler(
-          this,
-          base::Bind(&BrowserDevToolsAgentHost::SendMessageToClient,
-                     base::Unretained(this)))) {
+      protocol_handler_(new DevToolsProtocolHandler(this)) {
   DevToolsProtocolDispatcher* dispatcher = protocol_handler_->dispatcher();
   dispatcher->SetIOHandler(io_handler_.get());
   dispatcher->SetMemoryHandler(memory_handler_.get());
@@ -74,7 +71,7 @@ bool BrowserDevToolsAgentHost::Close() {
 
 bool BrowserDevToolsAgentHost::DispatchProtocolMessage(
     const std::string& message) {
-  protocol_handler_->HandleMessage(message);
+  protocol_handler_->HandleMessage(session_id(), message);
   return true;
 }