Index: content/public/browser/download_destination_observer.h |
diff --git a/content/public/browser/download_destination_observer.h b/content/public/browser/download_destination_observer.h |
index dbe6cce24fbf7b8ebf3afc5d07cf4ec7d19d58dd..0dd784f254826564e40d0d9d5cd7316bfb85cbfc 100644 |
--- a/content/public/browser/download_destination_observer.h |
+++ b/content/public/browser/download_destination_observer.h |
@@ -23,6 +23,8 @@ namespace content { |
// Note that this interface does not deal with cross-thread lifetime issues. |
class DownloadDestinationObserver { |
public: |
+ virtual ~DownloadDestinationObserver() { } |
+ |
virtual void DestinationUpdate(int64 bytes_so_far, |
int64 bytes_per_sec, |
const std::string& hash_state) = 0; |