[Mac]Port browser_keyevents_browsertest.cc and browser_focus_uitest.cc to Mac.

chrome/test/ui_test_utils_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 "chrome/test/ui_test_utils.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
@@ skipping 21 matching lines @@
       reinterpret_cast<BrowserView*>(browser_window)->GetViewByID(vid);
   DCHECK(view);
   ui_controls::MoveMouseToCenterAndPress(
       view,
       ui_controls::LEFT,
       ui_controls::DOWN | ui_controls::UP,
       new MessageLoop::QuitTask());
   RunMessageLoop();
 }
 
+void HideNativeWindow(gfx::NativeWindow window) {
+  // TODO(jcampan): retrieve the WidgetWin and show/hide on it instead of
+  // using Windows API.
+  ::ShowWindow(window, SW_HIDE);
+}
+
+void ShowAndFocusNativeWindow(gfx::NativeWindow window) {
+  // TODO(jcampan): retrieve the WidgetWin and show/hide on it instead of
+  // using Windows API.
+  ::ShowWindow(window, SW_SHOW);
+}
+
 }  // namespace ui_test_utils