Certificate Transparency: Fetching of Signed Tree Heads (DRAFT)

net/cert/ct_verifier.h

Index: net/cert/ct_verifier.h
diff --git a/net/cert/ct_verifier.h b/net/cert/ct_verifier.h
index 40631048ac32d21b41b5f220ee78e8c86f7aef4d..1ea8ff734258ccb1e3392e46a4c295260e1fb913 100644
--- a/net/cert/ct_verifier.h
+++ b/net/cert/ct_verifier.h
@@ -25,6 +25,7 @@ class NET_EXPORT CTVerifier {
  public:
   class NET_EXPORT Observer {
    public:
+    virtual ~Observer() {}
     // Called for each Signed Certificate Timestamp from a known log that vas
     // verified successfully (i.e. the signature verifies). |sct| is the
     // Signed Certificate Timestamp, |cert| is the certificate it applies to.