Ensure that NativeWidgetWin::OnPaint calls ValidateRect; workaround for crbug.com/93530.

views/widget/native_widget_win.cc

 // Copyright (c) 2011 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 "views/widget/native_widget_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include <algorithm>
@@ skipping 1757 matching lines @@
       !IsRectEmpty(&dirty_rect)) {
     if (delegate_->OnNativeWidgetPaintAccelerated(
         gfx::Rect(dirty_rect))) {
       ValidateRect(hwnd(), NULL);
     } else {
       scoped_ptr<gfx::CanvasPaint> canvas(
           gfx::CanvasPaint::CreateCanvasPaint(hwnd()));
       delegate_->OnNativeWidgetPaint(canvas->AsCanvas());
     }
   }
+  // TODO(msw): Find a better solution for crbug.com/93530; nix this workaround.

[MAD, 2011/11/15 19:39:52]

Shouldn't we only do this in an else statement?

[msw, 2011/11/15 20:12:19]

Done.

+  // Some scenarios otherwise fail to validate minimized app/popup windows.
+  ValidateRect(hwnd(), NULL);
 }
 
 LRESULT NativeWidgetWin::OnPowerBroadcast(DWORD power_event, DWORD data) {
   base::SystemMonitor* monitor = base::SystemMonitor::Get();
   if (monitor)
     monitor->ProcessWmPowerBroadcastMessage(power_event);
   SetMsgHandled(FALSE);
   return 0;
 }
 
@@ skipping 728 matching lines @@
   return (GetKeyState(VK_LBUTTON) & 0x80) ||
     (GetKeyState(VK_RBUTTON) & 0x80) ||
     (GetKeyState(VK_MBUTTON) & 0x80) ||
     (GetKeyState(VK_XBUTTON1) & 0x80) ||
     (GetKeyState(VK_XBUTTON2) & 0x80);
 }
 
 }  // namespace internal
 
 }  // namespace views