Help: Prevent moc from running on helpviewer_qwv.cpp.

If Webkit is disabled, moc will run on the file anyway, because there is
a ".moc" included and moc does not know about #ifdefs. This results in
an ugly warning ("no output generated") being emitted in the no-Webkit
case.
Solve the problem by moving the declaration of the QObject subclass into
the header file.

Change-Id: I2abaffd85a342fa2f3dbaa7bcf3ef63a2972c73e
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/help/helpviewer.h

@@ -44,6 +44,7 @@
 #if defined(QT_NO_WEBKIT)
 #include <QTextBrowser>
 #else
+#include <QWebPage>
 #include <QWebView>
 #endif
 
@@ -140,6 +141,33 @@ private:
     HelpViewerPrivate *d;
 };
 
+#ifndef QT_NO_WEBKIT
+class HelpPage : public QWebPage
+{
+    Q_OBJECT
+public:
+    HelpPage(QObject *parent);
+
+protected:
+    virtual QWebPage *createWindow(QWebPage::WebWindowType);
+    virtual void triggerAction(WebAction action, bool checked = false);
+
+    virtual bool acceptNavigationRequest(QWebFrame *frame,
+        const QNetworkRequest &request, NavigationType type);
+
+private slots:
+    void onHandleUnsupportedContent(QNetworkReply *reply);
+
+private:
+    QUrl m_loadingUrl;
+    bool closeNewTabIfNeeded;
+
+    friend class Help::Internal::HelpViewer;
+    Qt::MouseButtons m_pressedButtons;
+    Qt::KeyboardModifiers m_keyboardModifiers;
+};
+#endif // QT_NO_WEBKIT
+
 }   // namespace Internal
 }   // namespace Help
 

src/plugins/help/helpviewer_qwv.cpp

@@ -204,35 +204,6 @@ QNetworkReply *HelpNetworkAccessManager::createRequest(Operation op,
         ? QLatin1String("application/octet-stream") : mimeType);
 }
 
-// -- HelpPage
-
-class HelpPage : public QWebPage
-{
-    Q_OBJECT
-public:
-    HelpPage(QObject *parent);
-
-protected:
-    virtual QWebPage *createWindow(QWebPage::WebWindowType);
-    virtual void triggerAction(WebAction action, bool checked = false);
-
-    virtual bool acceptNavigationRequest(QWebFrame *frame,
-        const QNetworkRequest &request, NavigationType type);
-
-private slots:
-    void onHandleUnsupportedContent(QNetworkReply *reply);
-
-private:
-    QUrl m_loadingUrl;
-    bool closeNewTabIfNeeded;
-
-    friend class Help::Internal::HelpViewer;
-    Qt::MouseButtons m_pressedButtons;
-    Qt::KeyboardModifiers m_keyboardModifiers;
-};
-#include "helpviewer_qwv.moc"
-
-
 // - HelpPage
 
 HelpPage::HelpPage(QObject *parent)