Make CryptoResultImpl not to use WeakPtr.

Source/bindings/core/v8/ScriptPromiseResolver.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ScriptPromiseResolver_h
 #define ScriptPromiseResolver_h
 
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 67 matching lines @@
 
     // ActiveDOMObject implementation.
     virtual void suspend() override;
     virtual void resume() override;
     virtual void stop() override;
 
     // Once this function is called this resolver stays alive while the
     // promise is pending and the associated ExecutionContext isn't stopped.
     void keepAliveWhilePending();
 
+    bool stopped() { return m_resolver.cleared(); }

[tasak, 2014/12/04 08:08:01]

Used for ASSERTION in ~CryptoResultImpl.

+
 protected:
     // You need to call suspendIfNeeded after the construction because
     // this is an ActiveDOMObject.
     explicit ScriptPromiseResolver(ScriptState*);
 
+protected:
+    virtual void resolverCleared() { }

[tasak, 2014/12/04 08:08:01]

Invoked in ScriptPromiseResolver::clear().

+
 private:
     typedef ScriptPromise::InternalResolver Resolver;
     enum ResolutionState {
         Pending,
         Resolving,
         Rejecting,
         ResolvedOrRejected,
     };
     enum LifetimeMode {
         Default,
@@ skipping 35 matching lines @@
     ScopedPersistent<v8::Value> m_value;
 #if ENABLE(ASSERT)
     // True if promise() is called.
     bool m_isPromiseCalled;
 #endif
 };
 
 } // namespace blink
 
 #endif // #ifndef ScriptPromiseResolver_h