Bug 1137151: Marked destructor of |nsWindow| as protected, r=mwu

widget/gonk/nsWindow.h

@@ -48,7 +48,6 @@ class nsWindow : public nsBaseWidget
 {
 public:
     nsWindow();
-    virtual ~nsWindow();
 
     NS_DECL_ISUPPORTS_INHERITED
 
@@ -152,6 +151,8 @@ protected:
     // destruction.
     mozilla::RefPtr<mozilla::gfx::DrawTarget> mBackBuffer;
 
+    virtual ~nsWindow();
+
     void BringToTop();
 
     // Call this function when the users activity is the direct cause of an