Fix crash when emitting render-view-deleted event

atom/browser/api/atom_api_web_contents.cc

@@ -305,6 +305,10 @@ WebContents::WebContents(v8::Isolate* isolate, const mate::Dictionary& options)
       request_id_(0),
       background_throttling_(true),
       enable_devtools_(true) {
+  // WebContents may need to emit events when it is garbage collected, so it
+  // has to be deleted in the first gc callback.
+  MarkHighMemoryUsage();
+
   // Read options.
   options.Get("backgroundThrottling", &background_throttling_);