kill millix node process when the tangled browsers is stopped

content/browser/browser_main_loop.cc

@@ -11,6 +11,7 @@
 #include <string>
 #include <utility>
 #include <vector>
+#include <signal.h>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ -936,10 +937,10 @@ int BrowserMainLoop::CreateMillixNode() {
         ".\\nodejs\\node_modules\\@babel\\node\\bin\\babel-node.js");
   #else
     options.current_directory = dir_exe.AppendASCII("millix_node");
-    base::CommandLine millix_command_line(
-        base::FilePath("./nodejs/bin/node"));
+    base::CommandLine millix_command_line(dir_exe.AppendASCII("millix_node/nodejs/bin/node"));
     millix_command_line.AppendArg(
         "./nodejs/lib/node_modules/@babel/node/bin/babel-node.js");
+    options.new_process_group = true;
   #endif
   millix_command_line.AppendArg("index.js");
   // --enable-logging --v=2
@@ -950,6 +951,7 @@ int BrowserMainLoop::CreateMillixNode() {
     LOG(ERROR) << "Unable to run millix node " << millix_command_line.GetCommandLineString().c_str();
     return -1;
   }
+  LOG(ERROR) << "millix node process handle" << millix_process_->Handle();
   return 0;
 }
 
@@ -1013,7 +1015,10 @@ void BrowserMainLoop::RunMainMessageLoopParts() {
 void BrowserMainLoop::ShutdownThreadsAndCleanUp() {
 
   if (millix_process_->IsValid()) {
-    millix_process_->Terminate(0, false);
+    //millix_process_->Terminate(0, false);
+    auto pgid = -millix_process_->Pid();
+    LOG(ERROR) << "killing process group id " << pgid;
+    kill(pgid, SIGTERM);
   }
 
   if (!created_threads_) {