Consolidate/cleanup event cracking code; single out GdkEvents.

views/events/event_utils_win.h

-// 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.
-
-#ifndef VIEWS_EVENTS_EVENT_UTILS_WIN_H_
-#define VIEWS_EVENTS_EVENT_UTILS_WIN_H_
-#pragma once
-
-#include "ui/gfx/native_widget_types.h"
-#include "views/views_export.h"
-
-// Windows-specific Event utilities. Add functionality here rather than adding
-// #ifdefs to event.h
-
-namespace views {
-
-class Event;
-class KeyEvent;
-
-// Returns the repeat count of the specified KeyEvent. Valid only for
-// KeyEvents constructed from a MSG.
-int GetRepeatCount(const KeyEvent& event);
-
-// Returns true if the affected key is a Windows extended key. See documentation
-// for WM_KEYDOWN for explanation.
-// Valid only for KeyEvents constructed from a MSG.
-VIEWS_EXPORT bool IsExtendedKey(const KeyEvent& event);
-
-// Return a mask of windows key/button state flags for the event object.
-int GetWindowsFlags(const Event& event);
-
-}  // namespace views
-
-#endif  // VIEWS_EVENTS_EVENT_UTILS_WIN_H_