Add a QIcon constructor for Snore::Icon

REVIEW: 125095

src/libsnore/notification/icon.cpp

@@ -46,6 +46,10 @@ Icon::Icon(const QImage &img):
 {
 }
 
+Icon::Icon(const QIcon &icon):
+    d(new IconData(icon.pixmap(32).toImage()))
+{}
+
 Icon::Icon(const QString &url):
     d(new IconData(url))
 {

src/libsnore/notification/icon.h

@@ -53,6 +53,11 @@ public:
      */
     Icon(const QImage &img);
 
+    /**
+     * Creates an Icon from QIcon @p icon
+     */
+    Icon(const QIcon &icon);
+
     /**
      * Creates an Icon from a url
      * Valid urls are "file://home/foo/foo.png", "C:\\foo.png", ":/root/foo.png", "http://foo.com/foo.png"