diff --git a/atom/browser/native_window_views.cc b/atom/browser/native_window_views.cc
index fdcbe42205bf..0264ac59e1a7 100644
--- a/atom/browser/native_window_views.cc
+++ b/atom/browser/native_window_views.cc
@@ -442,6 +442,10 @@ gfx::Rect NativeWindowViews::GetBounds() {
   return window_->GetWindowBoundsInScreen();
 }
 
+gfx::Size NativeWindowViews::GetContentSize() {
+  return web_view_->size();
+}
+
 void NativeWindowViews::SetResizable(bool resizable) {
 #if defined(OS_WIN)
   // WS_MAXIMIZEBOX => Maximize button
diff --git a/atom/browser/native_window_views.h b/atom/browser/native_window_views.h
index 0e74410868e1..1ba02e89a3af 100644
--- a/atom/browser/native_window_views.h
+++ b/atom/browser/native_window_views.h
@@ -63,6 +63,7 @@ class NativeWindowViews : public NativeWindow,
   bool IsFullscreen() const override;
   void SetBounds(const gfx::Rect& bounds) override;
   gfx::Rect GetBounds() override;
+  gfx::Size GetContentSize() override;
   void SetResizable(bool resizable) override;
   bool IsResizable() override;
   void SetAlwaysOnTop(bool top) override;