Leak Detector: Add support for ScriptPromise on Blink side

Source/bindings/core/v8/ScriptPromise.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
 struct WithScriptState {
     // Used by ToV8Value<WithScriptState, ScriptState*>.
     static v8::Local<v8::Object> getCreationContext(ScriptState* scriptState)
     {
         return scriptState->context()->Global();
     }
 };
 
 } // namespace
 
+unsigned ScriptPromise::s_instanceCount = 0;
+
 ScriptPromise::InternalResolver::InternalResolver(ScriptState* scriptState)
     : m_resolver(scriptState, v8::Promise::Resolver::New(scriptState->context())) { }
 
 v8::Local<v8::Promise> ScriptPromise::InternalResolver::v8Promise() const
 {
     if (m_resolver.isEmpty())
         return v8::Local<v8::Promise>();
     return m_resolver.v8Value().As<v8::Promise::Resolver>()->GetPromise();
 }
 
@@ skipping 13 matching lines @@
 }
 
 void ScriptPromise::InternalResolver::reject(v8::Local<v8::Value> value)
 {
     if (m_resolver.isEmpty())
         return;
     m_resolver.v8Value().As<v8::Promise::Resolver>()->Reject(m_resolver.context(), value);
     clear();
 }
 
+ScriptPromise::ScriptPromise()
+{
+    ++s_instanceCount;
+}
+
 ScriptPromise::ScriptPromise(ScriptState* scriptState, v8::Local<v8::Value> value)
     : m_scriptState(scriptState)
 {
+    ++s_instanceCount;
+
     if (value.IsEmpty())
         return;
 
     if (!value->IsPromise()) {
         m_promise = ScriptValue(scriptState, v8::Local<v8::Value>());
         V8ThrowException::throwTypeError(scriptState->isolate(), "the given value is not a Promise");
         return;
     }
     m_promise = ScriptValue(scriptState, value);
 }
 
+ScriptPromise::ScriptPromise(const ScriptPromise& other)
+{
+    ++s_instanceCount;
+
+    this->m_scriptState = other.m_scriptState;
+    this->m_promise = other.m_promise;
+}
+
+ScriptPromise::~ScriptPromise()
+{
+    --s_instanceCount;
+}
+
 ScriptPromise ScriptPromise::then(v8::Local<v8::Function> onFulfilled, v8::Local<v8::Function> onRejected)
 {
     if (m_promise.isEmpty())
         return ScriptPromise();
 
     v8::Local<v8::Object> promise = m_promise.v8Value().As<v8::Object>();
 
     ASSERT(promise->IsPromise());
     // Return this Promise if no handlers are given.
     // In fact it is not the exact bahavior of Promise.prototype.then
@@ skipping 56 matching lines @@
         return v8::Local<v8::Promise>();
     v8::Local<v8::Promise::Resolver> resolver;
     if (!v8::Promise::Resolver::New(scriptState->context()).ToLocal(&resolver))
         return v8::Local<v8::Promise>();
     v8::Local<v8::Promise> promise = resolver->GetPromise();
     resolver->Reject(scriptState->context(), value);
     return promise;
 }
 
 } // namespace blink