Reverting 18872.

views/focus/focus_manager_win.cc

-// Copyright (c) 2006-2009 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/focus/focus_manager.h"
-
-#include "views/view.h"
-#include "views/widget/widget_win.h"
-
-namespace views {
-
-void FocusManager::ClearNativeFocus() {
-  // Keep the top root window focused so we get keyboard events.
-  ::SetFocus(widget_->GetNativeView());
-}
-
-void FocusManager::FocusNativeView(gfx::NativeView native_view) {
-  // Only reset focus if hwnd is not already focused.
-  if (native_view && ::GetFocus() != native_view)
-    ::SetFocus(native_view);
-}
-
-// static
-FocusManager* FocusManager::GetFocusManagerForNativeView(
-    gfx::NativeView native_view) {
-  HWND root = ::GetAncestor(native_view, GA_ROOT);
-  if (!root)
-    return NULL;
-  WidgetWin* widget = WidgetWin::GetWidget(root);
-  return widget ? widget->GetFocusManager() : NULL;
-}
-
-}  // namespace views