Clean headers of the Qt Designer plugin.

Change-Id: Ie0906cf88043c78d109ab7e1b342e62547680d45
Reviewed-by: Jarek Kobus <jaroslaw.kobus@theqtcompany.com>

src/plugins/designer/formeditorw.cpp

@@ -42,6 +42,7 @@
 #include <coreplugin/editortoolbar.h>
 #include <coreplugin/designmode.h>
 #include <coreplugin/coreconstants.h>
+#include <coreplugin/dialogs/ioptionspage.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/infobar.h>
 #include <coreplugin/helpmanager.h>

src/plugins/designer/formeditorw.h

@@ -33,14 +33,17 @@
 
 #include "designerconstants.h"
 
-#include <coreplugin/icontext.h>
-#include <coreplugin/dialogs/ioptionspage.h>
+#include <QObject>
 
 QT_BEGIN_NAMESPACE
 class QDesignerFormEditorInterface;
 QT_END_NAMESPACE
 
-namespace Core { class IEditor; }
+namespace Core {
+class IEditor;
+class IOptionsPage;
+}
+
 namespace SharedTools { class WidgetHost; }
 
 namespace Designer {

src/plugins/designer/formwindoweditor.h

@@ -32,7 +32,6 @@
 #define FORMWINDOWEDITOR_H
 
 #include "designer_export.h"
-#include <coreplugin/editormanager/ieditor.h>
 #include <texteditor/texteditor.h>
 
 namespace Designer {

src/plugins/designer/settingspage.cpp

@@ -31,6 +31,8 @@
 #include "settingspage.h"
 #include "formeditorw.h"
 
+#include <coreplugin/icontext.h>
+
 #include <QDesignerOptionsPageInterface>
 #include <QCoreApplication>