remove qt_windows.h include from qwineventnotifier.h

We must not include qt_windows.h in public headers,
otherwise we're cluttering the environment with a colorful
bouquet of Windows API preprocessor macros and typedefs.

Task-number: QTBUG-34058

Change-Id: I415717ea2a47f39e7f4b7ce1c1df9d49afc99278
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>

src/corelib/kernel/qwineventnotifier.h

@@ -45,7 +45,6 @@
 #include "QtCore/qobject.h"
 
 #ifdef Q_OS_WIN
-#include "QtCore/qt_windows.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -54,6 +53,7 @@ class Q_CORE_EXPORT QWinEventNotifier : public QObject
 {
     Q_OBJECT
     Q_DECLARE_PRIVATE(QWinEventNotifier)
+    typedef Qt::HANDLE HANDLE;
 
 public:
     explicit QWinEventNotifier(QObject *parent = 0);

tests/auto/corelib/kernel/qwineventnotifier/tst_qwineventnotifier.cpp

@@ -42,6 +42,7 @@
 #include <QtTest/QtTest>
 #include <qwineventnotifier.h>
 #include <qtimer.h>
+#include <qt_windows.h>
 
 class tst_QWinEventNotifier : public QObject
 {

tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp

@@ -48,7 +48,7 @@
 #include <private/qdatetime_p.h>
 
 #ifdef Q_OS_WIN
-# include <windows.h>
+#   include <qt_windows.h>
 #endif
 
 class tst_QDateTime : public QObject