Checking in webshell patches from Bruce Mitchener (bruce@cybersight.com). Thanks a lot.

webshell/src/nsPluginViewer.cpp

@@ -53,7 +53,7 @@ class PluginViewerImpl;
 class PluginListener : public nsIStreamListener {
 public:
   PluginListener(PluginViewerImpl* aViewer);
-  ~PluginListener();
+  virtual ~PluginListener();
 
   // nsISupports
   NS_DECL_ISUPPORTS
@@ -75,7 +75,7 @@ public:
 class pluginInstanceOwner : public nsIPluginInstanceOwner {
 public:
   pluginInstanceOwner();
-  ~pluginInstanceOwner();
+  virtual ~pluginInstanceOwner();
 
   NS_DECL_ISUPPORTS
 
@@ -135,7 +135,7 @@ public:
   NS_IMETHOD Hide();
   NS_IMETHOD Print(void);
 
-  ~PluginViewerImpl();
+  virtual ~PluginViewerImpl();
 
   nsresult CreatePlugin(nsIPluginHost* aHost, const nsRect& aBounds,
                         nsIStreamListener*& aResult);

webshell/src/nsThrobber.cpp

@@ -471,7 +471,7 @@ nsThrobber::LoadThrobberImages(const nsString& aFileNameMask, PRInt32 aNumImages
   }
 
   if (nsnull != mask)
-    delete mask;
+    delete [] mask;
 
   mWidget->Invalidate(PR_TRUE);
 
@@ -515,7 +515,7 @@ class nsThrobberFactory : public nsIFactory
 {
 public:
   nsThrobberFactory();
-  ~nsThrobberFactory();
+  virtual ~nsThrobberFactory();
 
   // nsISupports methods
   NS_IMETHOD QueryInterface(const nsIID &aIID, void **aResult);