Ios: Hide plugin class in .cpp

Change-Id: I10577ed877c6038ffd714a1a414ed8ba7ec801ee
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/ios/iosplugin.cpp

@@ -1,8 +1,6 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
-#include "iosplugin.h"
-
 #include "iosbuildconfiguration.h"
 #include "iosbuildstep.h"
 #include "iosconfigurations.h"
@@ -18,6 +16,8 @@
 #include "iostr.h"
 #include "iosrunconfiguration.h"
 
+#include <extensionsystem/iplugin.h>
+
 #include <projectexplorer/deployconfiguration.h>
 #include <projectexplorer/devicesupport/devicemanager.h>
 #include <projectexplorer/runconfiguration.h>
@@ -62,18 +62,28 @@ public:
     IosQmlProfilerWorkerFactory qmlProfilerWorkerFactory;
 };
 
-IosPlugin::~IosPlugin()
+class IosPlugin final : public ExtensionSystem::IPlugin
 {
-    delete d;
-}
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "Ios.json")
 
-void IosPlugin::initialize()
-{
-    qRegisterMetaType<Ios::IosToolHandler::Dict>("Ios::IosToolHandler::Dict");
+    ~IosPlugin() final
+    {
+        delete d;
+    }
 
-    IosConfigurations::initialize();
+    void initialize() final
+    {
+        qRegisterMetaType<Ios::IosToolHandler::Dict>("Ios::IosToolHandler::Dict");
 
-    d = new IosPluginPrivate;
-}
+        IosConfigurations::initialize();
+
+        d = new IosPluginPrivate;
+    }
+
+    IosPluginPrivate *d = nullptr;
+};
 
 } // Internal::Ios
+
+#include "iosplugin.moc"