--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -6393,23 +6393,19 @@ nsWindow::DispatchRestoreEventAccessible
 {
     DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_RESTORE);
 }
 
 #endif /* #ifdef ACCESSIBILITY */
 
 // nsChildWindow class
 
-nsChildWindow::nsChildWindow()
-{
-}
-
-nsChildWindow::~nsChildWindow()
-{
-}
+nsChildWindow::nsChildWindow() = default;
+
+nsChildWindow::~nsChildWindow() = default;
 
 NS_IMETHODIMP_(void)
 nsWindow::SetInputContext(const InputContext& aContext,
                           const InputContextAction& aAction)
 {
     if (!mIMContext) {
         return;
     }

--- a/widget/nsBaseDragService.cpp
+++ b/widget/nsBaseDragService.cpp
@@ -56,19 +56,17 @@ nsBaseDragService::nsBaseDragService()
     mDragEventDispatchedToChildProcess(false),
     mDragAction(DRAGDROP_ACTION_NONE),
     mDragActionFromChildProcess(DRAGDROP_ACTION_UNINITIALIZED), mTargetSize(0,0),
     mContentPolicyType(nsIContentPolicy::TYPE_OTHER),
     mSuppressLevel(0), mInputSource(nsIDOMMouseEvent::MOZ_SOURCE_MOUSE)
 {
 }
 
-nsBaseDragService::~nsBaseDragService()
-{
-}
+nsBaseDragService::~nsBaseDragService() = default;
 
 NS_IMPL_ISUPPORTS(nsBaseDragService, nsIDragService, nsIDragSession)
 
 //---------------------------------------------------------
 NS_IMETHODIMP
 nsBaseDragService::SetCanDrop(bool aCanDrop)
 {
   mCanDrop = aCanDrop;