v8binding: Removes WindowProxy::GlobalDetachmentBehavior.

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

 /*
  * Copyright (C) 2008, 2009, 2011 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 46 matching lines @@
 #include "platform/ScriptForbiddenScope.h"
 #include "platform/heap/Handle.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "platform/weborigin/SecurityViolationReportingPolicy.h"
 #include "platform/wtf/Assertions.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 
-void LocalWindowProxy::DisposeContext(GlobalDetachmentBehavior behavior) {
+void LocalWindowProxy::DisposeContext(Lifecycle next_status) {
+  DCHECK(next_status == Lifecycle::kGlobalObjectIsDetached ||
+         next_status == Lifecycle::kFrameIsDetached);
+
   if (lifecycle_ != Lifecycle::kContextIsInitialized)
     return;
 
   ScriptState::Scope scope(script_state_.Get());
   v8::Local<v8::Context> context = script_state_->GetContext();
   // The embedder could run arbitrary code in response to the
   // willReleaseScriptContext callback, so all disposing should happen after
   // it returns.
   GetFrame()->Loader().Client()->WillReleaseScriptContext(context,
                                                           world_->GetWorldId());
   MainThreadDebugger::Instance()->ContextWillBeDestroyed(script_state_.Get());
 
-  if (behavior == kDetachGlobal) {
+  if (next_status == Lifecycle::kGlobalObjectIsDetached) {
     v8::Local<v8::Context> context = script_state_->GetContext();
     // Clean up state on the global proxy, which will be reused.
     if (!global_proxy_.IsEmpty()) {
       CHECK(global_proxy_ == context->Global());
       CHECK_EQ(ToScriptWrappable(context->Global()),
                ToScriptWrappable(
                    context->Global()->GetPrototype().As<v8::Object>()));
       global_proxy_.Get().SetWrapperClassId(0);
     }
     V8DOMWrapper::ClearNativeInfo(GetIsolate(), context->Global());
     script_state_->DetachGlobalObject();
 
 #if DCHECK_IS_ON()
     DidDetachGlobalObject();
 #endif
   }
 
   script_state_->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(
       GetFrame()->IsMainFrame());
 
   DCHECK_EQ(lifecycle_, Lifecycle::kContextIsInitialized);
-  lifecycle_ = behavior == kDetachGlobal ? Lifecycle::kGlobalObjectIsDetached
-                                         : Lifecycle::kFrameIsDetached;
+  lifecycle_ = next_status;
 }
 
 void LocalWindowProxy::Initialize() {
   TRACE_EVENT1("v8", "LocalWindowProxy::initialize", "isMainWindow",
                GetFrame()->IsMainFrame());
   SCOPED_BLINK_UMA_HISTOGRAM_TIMER(
       GetFrame()->IsMainFrame()
           ? "Blink.Binding.InitializeMainLocalWindowProxy"
           : "Blink.Binding.InitializeNonMainLocalWindowProxy");
 
@@ skipping 322 matching lines @@
 
   SetSecurityToken(origin);
 }
 
 LocalWindowProxy::LocalWindowProxy(v8::Isolate* isolate,
                                    LocalFrame& frame,
                                    RefPtr<DOMWrapperWorld> world)
     : WindowProxy(isolate, frame, std::move(world)) {}
 
 }  // namespace blink