Call EnableNonClientDpiScaling

ui/gfx/win/window_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/win/window_impl.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/debug/alias.h"
@@ skipping 265 matching lines @@
 void WindowImpl::ClearUserData() {
   if (::IsWindow(hwnd_))
     gfx::SetWindowUserData(hwnd_, NULL);
 }
 
 // static
 LRESULT CALLBACK WindowImpl::WndProc(HWND hwnd,
                                      UINT message,
                                      WPARAM w_param,
                                      LPARAM l_param) {
+  WindowImpl* window = nullptr;
   if (message == WM_NCCREATE) {
     CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(l_param);
-    WindowImpl* window = reinterpret_cast<WindowImpl*>(cs->lpCreateParams);
+    window = reinterpret_cast<WindowImpl*>(cs->lpCreateParams);
     DCHECK(window);
     gfx::SetWindowUserData(hwnd, window);
     window->hwnd_ = hwnd;
     window->got_create_ = true;
     if (hwnd)
       window->got_valid_hwnd_ = true;
-    return TRUE;
+  } else {
+    window = reinterpret_cast<WindowImpl*>(GetWindowUserData(hwnd));
   }
 
-  WindowImpl* window = reinterpret_cast<WindowImpl*>(GetWindowUserData(hwnd));
   if (!window)
     return 0;
 
   return window->OnWndProc(message, w_param, l_param);
 }
 
 ATOM WindowImpl::GetWindowClassAtom() {
   HICON icon = GetDefaultWindowIcon();
   HICON small_icon = GetSmallWindowIcon();
   ClassInfo class_info(initial_class_style(), icon, small_icon);
   return ClassRegistrar::GetInstance()->RetrieveClassAtom(class_info);
 }
 
 }  // namespace gfx