Fix regression where the active window header was not used for apps on CrOS

chrome/browser/ui/views/frame/browser_desktop_root_window_host_win.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 "chrome/browser/ui/views/frame/browser_desktop_root_window_host_win.h"
 
 #include <dwmapi.h>
 
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/themes/theme_service.h"
@@ skipping 197 matching lines @@
     // position when the window becomes visible.  This fixes bugs where the icon
     // appears to overlay the minimize button.
     // Note that we will call Layout every time SetWindowPos is called with
     // SWP_SHOWWINDOW, however callers typically are careful about not
     // specifying this flag unless necessary to avoid flicker.
     // This may be invoked during creation on XP and before the non_client_view
     // has been created.
     WINDOWPOS* window_pos = reinterpret_cast<WINDOWPOS*>(l_param);
     if (window_pos->flags & SWP_SHOWWINDOW && GetWidget()->non_client_view()) {
       GetWidget()->non_client_view()->Layout();
-      GetWidget()->non_client_view()->SchedulePaint();
+      GetWidget()->non_client_view()->frame_view()->SchedulePaint();
     }
     break;
   }
   case WM_ERASEBKGND:
     if (!did_gdi_clear_ && DesktopRootWindowHostWin::ShouldUseNativeFrame()) {
       // This is necessary to avoid white flashing in the titlebar area around
       // the minimize/maximize/close buttons.
       HDC dc = GetDC(GetHWND());
       MARGINS margins = GetDWMFrameMargins();
       RECT client_rect;
@@ skipping 96 matching lines @@
     BrowserDesktopRootWindowHost::CreateBrowserDesktopRootWindowHost(
         views::internal::NativeWidgetDelegate* native_widget_delegate,
         views::DesktopNativeWidgetAura* desktop_native_widget_aura,
         BrowserView* browser_view,
         BrowserFrame* browser_frame) {
   return new BrowserDesktopRootWindowHostWin(native_widget_delegate,
                                              desktop_native_widget_aura,
                                              browser_view,
                                              browser_frame);
 }