:wrench: Properly derive

atom/browser/native_browser_view.cc

@@ -15,4 +15,8 @@ NativeBrowserView::NativeBrowserView(
 
 NativeBrowserView::~NativeBrowserView() {}
 
+void NativeBrowserView::UpdateDraggableRegions(
+    std::vector<gfx::Rect> system_drag_exclude_areas) {
+}
+
 }  // namespace atom

atom/browser/native_browser_view.h

@@ -42,7 +42,7 @@ class NativeBrowserView {
 
   // Called when the window needs to update its draggable region.
   virtual void UpdateDraggableRegions(
-      std::vector<gfx::Rect> system_drag_exclude_areas) = 0;
+      std::vector<gfx::Rect> system_drag_exclude_areas);
 
  protected:
   explicit NativeBrowserView(