src: turn inspector raw pointer into unique_ptr

Use a unique pointer to make ownership clear.

PR-URL: #16974
Reviewed-By: Timothy Gu <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Eugene Ostroukhov <[email protected]>

Author: fhinkel

src/env-inl.h

@@ -347,8 +347,9 @@ inline Environment::~Environment() {
   v8::HandleScope handle_scope(isolate());
 
 #if HAVE_INSPECTOR
-  // Destroy inspector agent before erasing the context.
-  delete inspector_agent_;
+  // Destroy inspector agent before erasing the context. The inspector
+  // destructor depends on the context still being accessible.
+  inspector_agent_.reset(nullptr);
 #endif
 
   context()->SetAlignedPointerInEmbedderData(kContextEmbedderDataIndex,

src/env.h

@@ -673,7 +673,7 @@ class Environment {
 
 #if HAVE_INSPECTOR
   inline inspector::Agent* inspector_agent() const {
-    return inspector_agent_;
+    return inspector_agent_.get();
   }
 #endif
 
@@ -718,7 +718,7 @@ class Environment {
   std::map<std::string, uint64_t> performance_marks_;
 
 #if HAVE_INSPECTOR
-  inspector::Agent* const inspector_agent_;
+  std::unique_ptr<inspector::Agent> inspector_agent_;
 #endif
 
   HandleWrapQueue handle_wrap_queue_;