Use timer task runner for V8PerIsolate tasks

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
 static V8PerIsolateData* mainThreadPerIsolateData = 0;
 
 static void beforeCallEnteredCallback(v8::Isolate* isolate) {
   RELEASE_ASSERT(!ScriptForbiddenScope::isScriptForbidden());
 }
 
 static void microtasksCompletedCallback(v8::Isolate* isolate) {
   V8PerIsolateData::from(isolate)->runEndOfScopeTasks();
 }
 
-V8PerIsolateData::V8PerIsolateData()
-    : m_isolateHolder(WTF::makeUnique<gin::IsolateHolder>()),
+V8PerIsolateData::V8PerIsolateData(WebTaskRunner* taskRunner)
+    : m_isolateHolder(WTF::makeUnique<gin::IsolateHolder>(
+          taskRunner->toSingleThreadTaskRunner())),
       m_stringCache(WTF::wrapUnique(new StringCache(isolate()))),
       m_hiddenValue(V8HiddenValue::create()),
       m_privateProperty(V8PrivateProperty::create()),
       m_constructorMode(ConstructorMode::CreateNewObject),
       m_useCounterDisabled(false),
       m_isHandlingRecursionLevelError(false),
       m_isReportingException(false) {
   // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone.
   isolate()->Enter();
   isolate()->AddBeforeCallEnteredCallback(&beforeCallEnteredCallback);
   isolate()->AddMicrotasksCompletedCallback(&microtasksCompletedCallback);
   if (isMainThread())
     mainThreadPerIsolateData = this;
   isolate()->SetUseCounterCallback(&useCounterCallback);
 }
 
 V8PerIsolateData::~V8PerIsolateData() {}
 
 v8::Isolate* V8PerIsolateData::mainThreadIsolate() {
   ASSERT(mainThreadPerIsolateData);
   return mainThreadPerIsolateData->isolate();
 }
 
-v8::Isolate* V8PerIsolateData::initialize() {
-  V8PerIsolateData* data = new V8PerIsolateData();
+v8::Isolate* V8PerIsolateData::initialize(WebTaskRunner* taskRunner) {
+  V8PerIsolateData* data = new V8PerIsolateData(taskRunner);
   v8::Isolate* isolate = data->isolate();
   isolate->SetData(gin::kEmbedderBlink, data);
   return isolate;
 }
 
 void V8PerIsolateData::enableIdleTasks(
     v8::Isolate* isolate,
     std::unique_ptr<gin::V8IdleTaskRunner> taskRunner) {
   from(isolate)->m_isolateHolder->EnableIdleTasks(
       std::unique_ptr<gin::V8IdleTaskRunner>(taskRunner.release()));
@@ skipping 297 matching lines @@
 
 void V8PerIsolateData::addActiveScriptWrappable(
     ActiveScriptWrappableBase* wrappable) {
   if (!m_activeScriptWrappables)
     m_activeScriptWrappables = new ActiveScriptWrappableSet();
 
   m_activeScriptWrappables->add(wrappable);
 }
 
 }  // namespace blink