Support for chrome.experimental.popup API in ExternalTabContainer views

views/widget/widget_win.cc

 // Copyright (c) 2009 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/widget_win.h"
 
 #include "app/gfx/canvas.h"
 #include "app/gfx/native_theme_win.h"
 #include "app/gfx/path.h"
 #include "app/l10n_util_win.h"
@@ skipping 452 matching lines @@
 
 void WidgetWin::OnClose() {
   Close();
 }
 
 void WidgetWin::OnCommand(UINT notification_code, int command_id, HWND window) {
   SetMsgHandled(FALSE);
 }
 
 LRESULT WidgetWin::OnCreate(CREATESTRUCT* create_struct) {
-  SetNativeWindowProperty(kWidgetKey, this);
+  // Widget::GetWidgetFromNativeView expects the contents of this property
+  // to be of type Widget, so the cast is necessary.
+  SetNativeWindowProperty(kWidgetKey, static_cast<Widget*>(this));
   return 0;
 }
 
 void WidgetWin::OnDestroy() {
   SetNativeWindowProperty(kWidgetKey, NULL);
 
   if (drop_target_.get()) {
     RevokeDragDrop(hwnd());
     drop_target_ = NULL;
   }
@@ skipping 731 matching lines @@
   }
   return NULL;
 }
 
 // static
 Widget* Widget::GetWidgetFromNativeWindow(gfx::NativeWindow native_window) {
   return Widget::GetWidgetFromNativeView(native_window);
 }
 
 }  // namespace views