Made the destructors on some XPCOM objects virtual (and protected) to make sure everything gets cleaned up...

view/src/nsScrollingView.h

@@ -29,7 +29,6 @@ class nsScrollingView : public nsView, public nsIScrollableView
 {
 public:
   nsScrollingView();
-  ~nsScrollingView();
 
   NS_IMETHOD QueryInterface(REFNSIID aIID,
                             void** aInstancePtr);
@@ -72,6 +71,9 @@ public:
   //private
   void ComputeScrollArea(nsIView *aView, nsRect &aRect, nscoord aOffX, nscoord aOffY);
 
+protected:
+  virtual ~nsScrollingView();
+
 protected:
   nscoord             mSizeX, mSizeY;
   nscoord             mOffsetX, mOffsetY;

view/src/nsView.h

@@ -32,7 +32,6 @@ class nsView : public nsIView
 {
 public:
   nsView();
-   ~nsView();
 
   void* operator new(size_t sz) {
     void* rv = new char[sz];
@@ -94,6 +93,7 @@ public:
   virtual void GetScrollOffset(nscoord *aDx, nscoord *aDy);
 
 protected:
+  virtual ~nsView();
   //
   virtual nsresult LoadWidget(const nsCID &aClassIID);
 

view/src/nsViewFactory.cpp

@@ -49,7 +49,9 @@ class nsViewFactory : public nsIFactory
     NS_IMETHOD LockFactory(PRBool aLock);   
 
     nsViewFactory(const nsCID &aClass);   
-    ~nsViewFactory();   
+
+  protected:
+    virtual ~nsViewFactory();   
 
   private:   
     nsrefcnt  mRefCnt;   

view/src/nsViewManager.h

@@ -118,7 +118,7 @@ public:
   virtual void SetQuality(nsContentQuality aQuality);
 
 private:
-  ~nsViewManager();
+  virtual ~nsViewManager();
   nsIRenderingContext *CreateRenderingContext(nsIView &aView);
   void AddRectToDirtyRegion(nsRect &aRect);
   void UpdateTransCnt(nsIView *oldview, nsIView *newview);