Make messageHandlerInMainThread support main-thread worklets.

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

 /*
  * Copyright (C) 2014 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 18 matching lines @@
  */
 
 #include "bindings/core/v8/ScriptPromise.h"
 
 #include "bindings/core/v8/ScriptFunction.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/testing/NullExecutionContext.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <v8.h>
 
 namespace blink {
 
 namespace {
 
 void callback(const v8::FunctionCallbackInfo<v8::Value>& info) { }
 
 class Function : public ScriptFunction {
@@ skipping 19 matching lines @@
     }
 
     ScriptValue* m_output;
 };
 
 class ScriptPromiseTest : public testing::Test {
 public:
     ScriptPromiseTest()
         : m_scope(v8::Isolate::GetCurrent())
     {
+        m_scope.getScriptState()->setExecutionContext(new NullExecutionContext());
     }
 
     ~ScriptPromiseTest()
     {
         // FIXME: We put this statement here to clear an exception from the isolate.
         createClosure(callback, v8::Undefined(m_scope.isolate()), m_scope.isolate());
 
         // Execute all pending microtasks
         v8::MicrotasksScope::PerformCheckpoint(isolate());
     }
@@ skipping 244 matching lines @@
     v8::MicrotasksScope::PerformCheckpoint(isolate());
 
     EXPECT_TRUE(onFulfilled.isEmpty());
     EXPECT_FALSE(onRejected.isEmpty());
     EXPECT_EQ("world", toString(onRejected));
 }
 
 } // namespace
 
 } // namespace blink