win: Fix black pixel artifact at right and bottom

ui/views/widget/desktop_aura/desktop_window_tree_host_win.h

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
index e56837567eb894df1349c0730d51af63f53abb74..6f18abb7dd4538425364e3ee94398bd6520b9204 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.h
@@ -48,6 +48,7 @@ class VIEWS_EXPORT DesktopWindowTreeHostWin
   void Init(aura::Window* content_window,
             const Widget::InitParams& params) override;
   void OnNativeWidgetCreated(const Widget::InitParams& params) override;
+  void OnNativeWidgetInitDone() override;
   std::unique_ptr<corewm::Tooltip> CreateTooltip() override;
   std::unique_ptr<aura::client::DragDropClient> CreateDragDropClient(
       DesktopNativeCursorManager* cursor_manager) override;
@@ -176,6 +177,7 @@ class VIEWS_EXPORT DesktopWindowTreeHostWin
   void HandleNativeBlur(HWND focused_window) override;
   bool HandleMouseEvent(const ui::MouseEvent& event) override;
   void HandleKeyEvent(ui::KeyEvent* event) override;
+  void HandleSizing(UINT edge, RECT* rect) override;
   void HandleTouchEvent(const ui::TouchEvent& event) override;
   bool HandleIMEMessage(UINT message,
                         WPARAM w_param,