[ABANDONED] Introduce Promise example implementation written in JavaScript.

Source/bindings/v8/V8DOMWindowShell.cpp

Index: Source/bindings/v8/V8DOMWindowShell.cpp
diff --git a/Source/bindings/v8/V8DOMWindowShell.cpp b/Source/bindings/v8/V8DOMWindowShell.cpp
index 6cc480b8b802e12d2826f9be8199fcc27176faa8..6e214b0bf4ed33168ba0048b4884c0a0447b9436 100644
--- a/Source/bindings/v8/V8DOMWindowShell.cpp
+++ b/Source/bindings/v8/V8DOMWindowShell.cpp
@@ -79,6 +79,28 @@ static void setInjectedScriptContextDebugId(v8::Handle<v8::Context> targetContex
     V8PerContextDebugData::setContextDebugData(targetContext, "injected", debugId);
 }
 
+V8DOMWindowShell::ContextScope::ContextScope(V8DOMWindowShell* shell, ContextDescriptor descriptor)
+    : m_scope(descriptor == DomContext ? shell->m_context.newLocal(shell->m_isolate) : shell->m_contextForBlinkJS.newLocal(shell->m_isolate))
+{
+}
+
+V8DOMWindowShell* V8DOMWindowShell::ContextScope::currentWindowShell()
+{
+    DOMWindow* window = activeDOMWindow();
+    if (!window)
+        return 0;
+    Document* document = window->document();
+    if (!document)
+        return 0;
+    Frame* frame = document->frame();
+    if (!frame)
+        return 0;
+    ScriptController* script = frame->script();
+    if (!script)
+        return 0;
+    return script->windowShell(DOMWrapperWorld::current());
+}
+
 PassOwnPtr<V8DOMWindowShell> V8DOMWindowShell::create(Frame* frame, PassRefPtr<DOMWrapperWorld> world, v8::Isolate* isolate)
 {
     return adoptPtr(new V8DOMWindowShell(frame, world, isolate));
@@ -94,6 +116,7 @@ V8DOMWindowShell::V8DOMWindowShell(Frame* frame, PassRefPtr<DOMWrapperWorld> wor
 void V8DOMWindowShell::disposeContext()
 {
     m_perContextData.clear();
+    m_perContextDataForBlinkJS.clear();
 
     if (m_context.isEmpty())
         return;
@@ -102,6 +125,7 @@ void V8DOMWindowShell::disposeContext()
     m_frame->loader()->client()->willReleaseScriptContext(m_context.newLocal(m_isolate), m_world->worldId());
 
     m_context.clear();
+    m_contextForBlinkJS.clear();
 
     // It's likely that disposing the context has created a lot of
     // garbage. Notify V8 about this so it'll have a chance of cleaning
@@ -221,6 +245,18 @@ bool V8DOMWindowShell::initializeIfNeeded()
         return false;
     }
     m_perContextData->setActivityLogger(DOMWrapperWorld::activityLogger(m_world->worldId()));
+
+    {
+        v8::Handle<v8::Context> contextForBlinkJS = m_contextForBlinkJS.newLocal(m_isolate);
+        v8::Context::Scope contextScope(contextForBlinkJS);
+        m_perContextDataForBlinkJS = V8PerContextData::create(contextForBlinkJS);
+        if (!m_perContextDataForBlinkJS->init()) {
+            disposeContext();
+            return false;
+        }
+        m_perContextDataForBlinkJS->setActivityLogger(DOMWrapperWorld::activityLogger(m_world->worldId()));
+    }
+
     if (!installDOMWindow()) {
         disposeContext();
         return false;
@@ -293,6 +329,7 @@ void V8DOMWindowShell::createContext()
 
     v8::HandleScope handleScope(m_isolate);
     m_context.set(m_isolate, v8::Context::New(m_isolate, &extensionConfiguration, globalTemplate, m_global.newLocal(m_isolate)));
+    m_contextForBlinkJS.set(m_isolate, v8::Context::New(m_isolate, 0, globalTemplate));
 
     double contextCreationDurationInMilliseconds = (currentTime() - contextCreationStartInSeconds) * 1000;
     const char* histogramName = "WebCore.V8DOMWindowShell.createContext.MainWorld";
@@ -330,6 +367,12 @@ bool V8DOMWindowShell::installDOMWindow()
     V8DOMWrapper::setNativeInfo(innerGlobalObject, &V8DOMWindow::info, window);
     innerGlobalObject->SetPrototype(windowWrapper);
     V8DOMWrapper::associateObjectWithWrapper(PassRefPtr<DOMWindow>(window), &V8DOMWindow::info, windowWrapper, m_isolate, WrapperConfiguration::Dependent);
+
+    v8::Handle<v8::Object> innerGlobalObjectForBlinkJS = toInnerGlobalObject(m_contextForBlinkJS.newLocal(m_isolate));
+    V8DOMWrapper::setNativeInfo(innerGlobalObjectForBlinkJS, &V8DOMWindow::info, window);
+    innerGlobalObjectForBlinkJS->SetPrototype(windowWrapper);
+    V8DOMWrapper::associateObjectWithWrapper(PassRefPtr<DOMWindow>(window), &V8DOMWindow::info, windowWrapper, m_isolate, WrapperConfiguration::Dependent);
+
     DOMWrapperWorld::setInitializingWindow(false);
     return true;
 }