Do not create duplicate V8Platform in NodeDebugger

atom/app/node_main.cc

@@ -58,7 +58,7 @@ int NodeMain(int argc, char *argv[]) {
 
     // Enable support for v8 inspector.
     NodeDebugger node_debugger(env);
-    node_debugger.Start();
+    node_debugger.Start(gin_env.platform());
 
     mate::Dictionary process(gin_env.isolate(), env->process_object());
 #if defined(OS_WIN)

atom/browser/atom_browser_main_parts.cc

@@ -137,7 +137,7 @@ void AtomBrowserMainParts::PostEarlyInitialization() {
 
   // Enable support for v8 inspector
   node_debugger_.reset(new NodeDebugger(env));
-  node_debugger_->Start();
+  node_debugger_->Start(js_env_->platform());
 
   // Add Electron extended APIs.
   atom_bindings_->BindTo(js_env_->isolate(), env->process_object());

atom/browser/javascript_environment.h

@@ -23,6 +23,7 @@ class JavascriptEnvironment {
   void OnMessageLoopCreated();
   void OnMessageLoopDestroying();
 
+  node::NodePlatform* platform() const { return platform_; }
   v8::Isolate* isolate() const { return isolate_; }
   v8::Local<v8::Context> context() const {
     return v8::Local<v8::Context>::New(isolate_, context_);

atom/browser/node_debugger.cc

@@ -14,15 +14,13 @@
 namespace atom {
 
 NodeDebugger::NodeDebugger(node::Environment* env)
-    : env_(env), platform_(nullptr) {
+    : env_(env) {
 }
 
 NodeDebugger::~NodeDebugger() {
-  if (platform_)
-    FreePlatform(platform_);
 }
 
-void NodeDebugger::Start() {
+void NodeDebugger::Start(node::NodePlatform* platform) {
   auto inspector = env_->inspector_agent();
   if (inspector == nullptr)
     return;
@@ -37,13 +35,6 @@ void NodeDebugger::Start() {
   }
 
   if (options.inspector_enabled()) {
-    // Use custom platform since the gin platform does not work correctly
-    // with node's inspector agent. We use the default thread pool size
-    // specified by node.cc
-    platform_ = node::CreatePlatform(
-        /* thread_pool_size */ 4, env_->event_loop(),
-        /* tracing_controller */ nullptr);
-
     // Set process._debugWaitConnect if --inspect-brk was specified to stop
     // the debugger on the first line
     if (options.wait_for_connect()) {
@@ -51,7 +42,7 @@ void NodeDebugger::Start() {
       process.Set("_breakFirstLine", true);
     }
 
-    inspector->Start(platform_, nullptr, options);
+    inspector->Start(platform, nullptr, options);
   }
 }
 

atom/browser/node_debugger.h

@@ -20,11 +20,10 @@ class NodeDebugger {
   explicit NodeDebugger(node::Environment* env);
   ~NodeDebugger();
 
-  void Start();
+  void Start(node::NodePlatform* platform);
 
  private:
   node::Environment* env_;
-  node::NodePlatform* platform_;
 
   DISALLOW_COPY_AND_ASSIGN(NodeDebugger);
 };