Use smart pointer

filament/src/details/Engine.cpp

@@ -259,8 +259,8 @@ void FEngine::init() {
     SYSTRACE_CALL();
 
 #if FILAMENT_ENABLE_FGDBG
-  if (!debug.fgdbg) {
-      debug.fgdbg = new fgdbg::DebugServer();
+    if (!debug.fgdbg) {
+        debug.fgdbg = std::make_unique<fgdbg::DebugServer>();
     }
 #endif
 
@@ -402,10 +402,6 @@ void FEngine::shutdown() {
     ASSERT_PRECONDITION(ThreadUtils::isThisThread(mMainThreadId),
             "Engine::shutdown() called from the wrong thread!");
 
-#if FILAMENT_ENABLE_FGDBG
-    delete debug.fgdbg;
-#endif
-
 #ifndef NDEBUG
     // print out some statistics about this run
     size_t wm = mCommandBufferQueue.getHighWatermark();

filament/src/details/Engine.h

@@ -528,7 +528,7 @@ public:
             bool doFrameCapture = false;
         } renderer;
         matdbg::DebugServer* server = nullptr;
-        fgdbg::DebugServer* fgdbg = nullptr;
+        std::unique_ptr<fgdbg::DebugServer> fgdbg = nullptr;
     } debug;
 };