diff --git a/apps/ui/views/app_window_frame_view.cc b/apps/ui/views/app_window_frame_view.cc
index 2dd2083dc2b89..f689a892bb833 100644
--- a/apps/ui/views/app_window_frame_view.cc
+++ b/apps/ui/views/app_window_frame_view.cc
@@ -221,11 +221,6 @@ int AppWindowFrameView::NonClientHitTest(const gfx::Point& point) {
   return HTCAPTION;
 }
 
-void AppWindowFrameView::GetWindowMask(const gfx::Size& size,
-                                       SkPath* window_mask) {
-  // We got nothing to say about no window mask.
-}
-
 void AppWindowFrameView::SizeConstraintsChanged() {
   if (draw_frame_) {
     maximize_button_->SetEnabled(widget_->widget_delegate() &&
diff --git a/apps/ui/views/app_window_frame_view.h b/apps/ui/views/app_window_frame_view.h
index 915a0fb059aac..fc52bf97811e9 100644
--- a/apps/ui/views/app_window_frame_view.h
+++ b/apps/ui/views/app_window_frame_view.h
@@ -64,10 +64,6 @@ class AppWindowFrameView : public views::NonClientFrameView {
   gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const override;
   int NonClientHitTest(const gfx::Point& point) override;
-  void GetWindowMask(const gfx::Size& size, SkPath* window_mask) override;
-  void ResetWindowControls() override {}
-  void UpdateWindowIcon() override {}
-  void UpdateWindowTitle() override {}
   void SizeConstraintsChanged() override;
 
   // views::View implementation.