workers: Move core worker functionality into InProcessWorkerBase.

Source/modules/compositorworker/CompositorWorker.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/compositorworker/CompositorWorker.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/workers/WorkerClients.h"
 #include "modules/EventTargetModules.h"
 #include "modules/compositorworker/CompositorWorkerMessagingProxy.h"
 #include "wtf/MainThread.h"
 
 namespace blink {
 
 inline CompositorWorker::CompositorWorker(ExecutionContext* context)
-    : Worker(context)
+    : InProcessWorkerBase(context)
 {
 }
 
 PassRefPtrWillBeRawPtr<CompositorWorker> CompositorWorker::create(ExecutionContext* context, const String& url, ExceptionState& exceptionState)
 {
     ASSERT(isMainThread());
     Document* document = toDocument(context);
     if (!document->page()) {
         exceptionState.throwDOMException(InvalidAccessError, "The context provided is invalid.");
         return nullptr;
@@ skipping 15 matching lines @@
 }
 
 WorkerGlobalScopeProxy* CompositorWorker::createWorkerGlobalScopeProxy(ExecutionContext* worker)
 {
     ASSERT(executionContext()->isDocument());
     OwnPtrWillBeRawPtr<WorkerClients> workerClients = WorkerClients::create();
     return new CompositorWorkerMessagingProxy(this, workerClients.release());
 }
 
 } // namespace blink