Revert of Switch RemoteWindowProxy to use v8::Context::NewRemoteContext.

third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp

Index: third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
index 0720f8d775e289a1bf6ed8ac038f93bed6a0f646..088ceb751c452441980f37aa5b10ba6b57d042f6 100644
--- a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
@@ -37,11 +37,9 @@
 #include "bindings/core/v8/ToV8.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8DOMActivityLogger.h"
-#include "bindings/core/v8/V8GCForContextDispose.h"
 #include "bindings/core/v8/V8HTMLDocument.h"
 #include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/V8Initializer.h"
-#include "bindings/core/v8/V8PagePopupControllerBinding.h"
 #include "bindings/core/v8/V8PrivateProperty.h"
 #include "bindings/core/v8/V8Window.h"
 #include "core/dom/Modulator.h"
@@ -59,7 +57,6 @@
 #include "platform/heap/Handle.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
 #include "platform/weborigin/SecurityOrigin.h"
-#include "v8/include/v8.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
@@ -77,36 +74,7 @@
                                                        m_world->worldId());
   MainThreadDebugger::instance()->contextWillBeDestroyed(m_scriptState.get());
 
-  if (behavior == DetachGlobal) {
-    v8::Local<v8::Context> context = m_scriptState->context();
-    // Clean up state on the global proxy, which will be reused.
-    if (!m_globalProxy.isEmpty()) {
-      // TODO(yukishiino): This DCHECK failed on Canary (M57) and Dev (M56).
-      // We need to figure out why m_globalProxy != context->Global().
-      DCHECK(m_globalProxy == context->Global());
-      DCHECK_EQ(toScriptWrappable(context->Global()),
-                toScriptWrappable(
-                    context->Global()->GetPrototype().As<v8::Object>()));
-      m_globalProxy.get().SetWrapperClassId(0);
-    }
-    V8DOMWrapper::clearNativeInfo(isolate(), context->Global());
-    m_scriptState->detachGlobalObject();
-
-#if DCHECK_IS_ON()
-    didDetachGlobalProxy();
-#endif
-  }
-
-  m_scriptState->disposePerContextData();
-
-  // 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
-  // it up when idle.
-  V8GCForContextDispose::instance().notifyContextDisposed(
-      frame()->isMainFrame());
-
-  DCHECK(m_lifecycle == Lifecycle::ContextInitialized);
-  m_lifecycle = Lifecycle::ContextDetached;
+  WindowProxy::disposeContext(behavior);
 }
 
 void LocalWindowProxy::initialize() {
@@ -162,54 +130,12 @@
     frame()->loader().dispatchDidClearWindowObjectInMainWorld();
 }
 
-void LocalWindowProxy::setupWindowPrototypeChain() {
-  // Associate the window wrapper object and its prototype chain with the
-  // corresponding native DOMWindow object.
-  LocalDOMWindow* window = frame()->domWindow();
-  const WrapperTypeInfo* wrapperTypeInfo = window->wrapperTypeInfo();
-  v8::Local<v8::Context> context = m_scriptState->context();
-
-  // The global proxy object.  Note this is not the global object.
-  v8::Local<v8::Object> globalProxy = context->Global();
-  CHECK(m_globalProxy == globalProxy);
-  V8DOMWrapper::setNativeInfo(isolate(), globalProxy, wrapperTypeInfo, window);
-  // Mark the handle to be traced by Oilpan, since the global proxy has a
-  // reference to the DOMWindow.
-  m_globalProxy.get().SetWrapperClassId(wrapperTypeInfo->wrapperClassId);
-
-#if DCHECK_IS_ON()
-  didAttachGlobalProxy();
-#endif
-
-  // The global object, aka window wrapper object.
-  v8::Local<v8::Object> windowWrapper =
-      globalProxy->GetPrototype().As<v8::Object>();
-  V8DOMWrapper::setNativeInfo(isolate(), windowWrapper, wrapperTypeInfo,
-                              window);
-
-  // The prototype object of Window interface.
-  v8::Local<v8::Object> windowPrototype =
-      windowWrapper->GetPrototype().As<v8::Object>();
-  CHECK(!windowPrototype.IsEmpty());
-  V8DOMWrapper::setNativeInfo(isolate(), windowPrototype, wrapperTypeInfo,
-                              window);
-
-  // The named properties object of Window interface.
-  v8::Local<v8::Object> windowProperties =
-      windowPrototype->GetPrototype().As<v8::Object>();
-  CHECK(!windowProperties.IsEmpty());
-  V8DOMWrapper::setNativeInfo(isolate(), windowProperties, wrapperTypeInfo,
-                              window);
-
-  // TODO(keishi): Remove installPagePopupController and implement
-  // PagePopupController in another way.
-  V8PagePopupControllerBinding::installPagePopupController(context,
-                                                           windowWrapper);
-}
-
 void LocalWindowProxy::createContext() {
   // Create a new v8::Context with the window object as the global object
-  // (aka the inner global). Reuse the outer global proxy if it already exists.
+  // (aka the inner global).  Reuse the global proxy object (aka the outer
+  // global) if it already exists.  See the comments in
+  // setupWindowPrototypeChain for the structure of the prototype chain of
+  // the global object.
   v8::Local<v8::ObjectTemplate> globalTemplate =
       V8Window::domTemplate(isolate(), *m_world)->InstanceTemplate();
   CHECK(!globalTemplate.IsEmpty());