Remove Isolated Worlds from Sky

sky/engine/bindings/core/v8/V8GCController.cpp

 /*
  * Copyright (C) 2009 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 374 matching lines @@
     v8::HandleScope scope(isolate);
 
     TRACE_EVENT_END0("v8", "majorGC");
     if (isMainThread())
         ScriptForbiddenScope::exit();
 }
 
 void V8GCController::collectGarbage(v8::Isolate* isolate)
 {
     v8::HandleScope handleScope(isolate);
-    RefPtr<ScriptState> scriptState = ScriptState::create(v8::Context::New(isolate), DOMWrapperWorld::create());
+    RefPtr<ScriptState> scriptState = ScriptState::create(v8::Context::New(isolate), DOMWrapperWorld::create(FakeWorld));
     ScriptState::Scope scope(scriptState.get());
     V8ScriptRunner::compileAndRunInternalScript(v8String(isolate, "if (gc) gc();"), isolate);
     scriptState->disposePerContextData();
 }
 
 void V8GCController::reportDOMMemoryUsageToV8(v8::Isolate* isolate)
 {
     if (!isMainThread())
         return;
 
     static size_t lastUsageReportedToV8 = 0;
 
     size_t currentUsage = Partitions::currentDOMMemoryUsage();
     int64_t diff = static_cast<int64_t>(currentUsage) - static_cast<int64_t>(lastUsageReportedToV8);
     isolate->AdjustAmountOfExternalAllocatedMemory(diff);
 
     lastUsageReportedToV8 = currentUsage;
 }
 
 } // namespace blink