Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/core/workers/WorkerThread.cpp

Index: third_party/WebKit/Source/core/workers/WorkerThread.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerThread.cpp b/third_party/WebKit/Source/core/workers/WorkerThread.cpp
index 2ec784ab0e94755650bee385b11d656bb0766a25..93de572626769175f1a1a6469a1b6a1329743d2b 100644
--- a/third_party/WebKit/Source/core/workers/WorkerThread.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerThread.cpp
@@ -71,7 +71,7 @@ public:
     {
         Microtask::performCheckpoint(m_workerThread->isolate());
         if (WorkerGlobalScope* globalScope = m_workerThread->workerGlobalScope()) {
-            if (WorkerScriptController* scriptController = globalScope->script())
+            if (IsolatedScriptController* scriptController = globalScope->script())
                 scriptController->rejectedPromises()->processQueue();
             if (globalScope->isClosing()) {
                 m_workerThread->workerReportingProxy().workerGlobalScopeClosed();
@@ -300,7 +300,7 @@ void WorkerThread::initialize(PassOwnPtr<WorkerThreadStartupData> startupData)
         // Notify proxy that a new WorkerGlobalScope has been created and started.
         m_workerReportingProxy.workerGlobalScopeStarted(m_workerGlobalScope.get());
 
-        WorkerScriptController* script = m_workerGlobalScope->script();
+        IsolatedScriptController* script = m_workerGlobalScope->script();
         if (!script->isExecutionForbidden())
             script->initializeContextIfNeeded();
     }