Make CryptoResultImpl not to use WeakPtr.

Source/modules/crypto/CryptoResultImpl.h

Index: Source/modules/crypto/CryptoResultImpl.h
diff --git a/Source/modules/crypto/CryptoResultImpl.h b/Source/modules/crypto/CryptoResultImpl.h
index 3ea352cb662d7b5bb8d5a35704e30b9bfeaeb49d..2123b434f860a08c2ae991f09c1c73b9613a25ab 100644
--- a/Source/modules/crypto/CryptoResultImpl.h
+++ b/Source/modules/crypto/CryptoResultImpl.h
@@ -71,13 +71,18 @@ public:
     // ScriptPromise.
     ScriptPromise promise();
 
+    void clearResolver();

[eroman, 2014/12/09 19:15:29]

Make this function private.

[tasak, 2014/12/11 09:44:39]

Done.

+
 private:
     class WeakResolver;

[yhirano, 2014/12/11 02:27:59]

WeakResolver is no long "weak", so just Resolver is enough?

[tasak, 2014/12/11 09:44:39]

Done.

     explicit CryptoResultImpl(ScriptState*);
 
     void cancel();
 
-    WeakPtr<ScriptPromiseResolver> m_resolver;
+    // Since ScriptPromiseResolver destroys itself, we should not use RefPtr here.

[yhirano, 2014/12/11 02:27:59]

Please wrap comments in 80 columns.

[tasak, 2014/12/11 09:44:39]

Done.

+    // So to avoid using stale pointer, m_resolver should be cleared after resolving.
+    // FIXME: ScriptPromiseResolver should not be exported. Instead, use ScriptPromise.
+    RawPtr<ScriptPromiseResolver> m_resolver;
     volatile int m_cancelled;
 };