diff --git a/chrome/browser/task_manager.h b/chrome/browser/task_manager.h
index 866246c..106aeaa 100644
--- a/chrome/browser/task_manager.h
+++ b/chrome/browser/task_manager.h
@@ -84,6 +84,8 @@
   // MessageLoop::InvokeLater().
   class ResourceProvider : public base::RefCounted<ResourceProvider> {
    public:
+    virtual ~ResourceProvider() {}
+
     // Should return the resource associated to the specified ids, or NULL if
     // the resource does not belong to this provider.
     virtual TaskManager::Resource* GetResource(int process_id,