Do not run GC in ScriptPromisePropertyBase::destroyContext().

Source/bindings/core/v8/ScriptPromisePropertyTest.cpp

Index: Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
diff --git a/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp b/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
index 0d6f95941e77e5147e5ab221ec08ebbc80ce7ed7..2cc360a1d9236e6f0c5bc89ef4dad8356077cfb4 100644
--- a/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
+++ b/Source/bindings/core/v8/ScriptPromisePropertyTest.cpp
@@ -131,7 +131,7 @@ public:
 
     virtual ~ScriptPromisePropertyTestBase()
     {
-        ScriptPromisePropertyTestBase::destroyContext();
+        destroyContext();
     }
 
     Document& document() { return m_page->document(); }
@@ -142,15 +142,13 @@ public:
     DOMWrapperWorld& otherWorld() { return m_otherScriptState->world(); }
     ScriptState* currentScriptState() { return ScriptState::current(isolate()); }
 
-    virtual void destroyContext()
+    void destroyContext()
     {
         m_page.clear();
         if (m_otherScriptState) {
             m_otherScriptState->disposePerContextData();
             m_otherScriptState = nullptr;
         }
-        gc();
-        Heap::collectAllGarbage();
     }
 
     void gc() { V8GCController::collectGarbage(v8::Isolate::GetCurrent()); }
@@ -188,12 +186,6 @@ public:
     Property* property() { return m_holder->property(); }
     ScriptPromise promise(DOMWrapperWorld& world) { return property()->promise(world); }
 
-    void destroyContext() override
-    {
-        m_holder = nullptr;
-        ScriptPromisePropertyTestBase::destroyContext();
-    }
-
 private:
     Persistent<GarbageCollectedHolder> m_holder;
 };
@@ -362,7 +354,7 @@ TEST_F(ScriptPromisePropertyGarbageCollectedTest, Reject_RejectsScriptPromise)
 
 TEST_F(ScriptPromisePropertyGarbageCollectedTest, Promise_DeadContext)
 {
-    Persistent<Property> property = this->property();
+    Property* property = this->property();

[sof, 2015/08/31 08:44:03]

not needed now, but a nicety to bind it to a local, right?

[yhirano, 2015/09/01 07:01:55]

Ah, I didn't notice that. Removed.

     property->resolve(new GarbageCollectedScriptWrappable("value"));
     EXPECT_EQ(Property::Resolved, property->state());
 
@@ -373,7 +365,7 @@ TEST_F(ScriptPromisePropertyGarbageCollectedTest, Promise_DeadContext)
 
 TEST_F(ScriptPromisePropertyGarbageCollectedTest, Resolve_DeadContext)
 {
-    Persistent<Property> property = this->property();
+    Property* property = this->property();
 
     {
         ScriptState::Scope scope(mainScriptState());