Consolidate win/x dispatchers

chrome/browser/ui/views/simple_message_box_views.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/simple_message_box_views.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/simple_message_box.h"
 #include "chrome/browser/ui/dialog_style.h"
@@ skipping 131 matching lines @@
       string16());
   views::Widget::CreateWindowWithParent(this, parent_window)->Show();
 
   // Add reference to be released in DeleteDelegate().
   AddRef();
 }
 
 SimpleMessageBoxViews::~SimpleMessageBoxViews() {
 }
 
+bool SimpleMessageBoxViews::Dispatch(const base::NativeEvent& event) {
 #if defined(OS_WIN)
-bool SimpleMessageBoxViews::Dispatch(const MSG& msg) {
-  TranslateMessage(&msg);
-  DispatchMessage(&msg);
+  TranslateMessage(&event);
+  DispatchMessage(&event);
+#elif defined(USE_AURA)
+  aura::Env::GetInstance()->GetDispatcher()->Dispatch(event);
+#endif
   return disposition_ == DISPOSITION_UNKNOWN;
 }
-#elif defined(USE_AURA)
-base::MessagePumpDispatcher::DispatchStatus
-    SimpleMessageBoxViews::Dispatch(XEvent* xev) {
-  if (!aura::Env::GetInstance()->GetDispatcher()->Dispatch(xev))
-    return EVENT_IGNORED;
-
-  if (disposition_ == DISPOSITION_UNKNOWN)
-    return base::MessagePumpDispatcher::EVENT_PROCESSED;
-  return base::MessagePumpDispatcher::EVENT_QUIT;
-}
-#endif