Implement QWindow::setWindowIcon

Since QIcon has been moved back to QtGui, QWindow::setWindowIcon can
use it. That way, the api is exactly the same as in QWidgets and one
can deal properly with multi-sized icon.
I added a getter so the api is consistent with QWidget
(Maybe there should be properties for windowIcon and windowTitle)

Change-Id: I2f463dbe39673f41a3201ef8fed27b3fcac2125f
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gui/kernel/qplatformwindow.h b/src/gui/kernel/qplatformwindow.h
index 50efe88a52..7cb8d8cdb8 100644
--- a/src/gui/kernel/qplatformwindow.h
+++ b/src/gui/kernel/qplatformwindow.h
@@ -67,6 +67,7 @@ QT_BEGIN_NAMESPACE
 class QPlatformScreen;
 class QPlatformWindowPrivate;
 class QWindow;
+class QIcon;
 
 class Q_GUI_EXPORT QPlatformWindow : public QPlatformSurface
 {
@@ -95,6 +96,7 @@ public:
     virtual void setParent(const QPlatformWindow *window);
 
     virtual void setWindowTitle(const QString &title);
+    virtual void setWindowIcon(const QIcon &icon);
     virtual void raise();
     virtual void lower();