workers: Rename WorkerThread to WorkerScript.

Source/core/workers/DedicatedWorkerThread.h

Index: Source/core/workers/DedicatedWorkerThread.h
diff --git a/Source/core/workers/DedicatedWorkerThread.h b/Source/core/workers/DedicatedWorkerThread.h
index 03bd2127bc446f1456a623f412918ac090e9d8b5..7c8fde9c8c22ffe71fd204d83052e07777dca37f 100644
--- a/Source/core/workers/DedicatedWorkerThread.h
+++ b/Source/core/workers/DedicatedWorkerThread.h
@@ -31,26 +31,27 @@
 #define DedicatedWorkerThread_h
 
 #include "core/frame/csp/ContentSecurityPolicy.h"
-#include "core/workers/WorkerThread.h"
+#include "core/workers/WorkerScript.h"
 
 namespace blink {
 
 class WorkerObjectProxy;
-class WorkerThreadStartupData;
+class WorkerScriptStartupData;
 
-class DedicatedWorkerThread final : public WorkerThread {
+// TODO(sadrul): This will be renamed to DedicatedWorkerScript.
+class DedicatedWorkerThread final : public WorkerScript {
 public:
-    static PassRefPtr<DedicatedWorkerThread> create(PassRefPtr<WorkerLoaderProxy>, WorkerObjectProxy&, double timeOrigin, PassOwnPtr<WorkerThreadStartupData>);
+    static PassRefPtr<DedicatedWorkerThread> create(PassRefPtr<WorkerLoaderProxy>, WorkerObjectProxy&, double timeOrigin, PassOwnPtr<WorkerScriptStartupData>);
     WorkerObjectProxy& workerObjectProxy() const { return m_workerObjectProxy; }
     virtual ~DedicatedWorkerThread();
 
 protected:
-    PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData>) override;
+    PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(PassOwnPtr<WorkerScriptStartupData>) override;
     void postInitialize() override;
     WebThreadSupportingGC& backingThread() override;
 
 private:
-    DedicatedWorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerObjectProxy&, double timeOrigin, PassOwnPtr<WorkerThreadStartupData>);
+    DedicatedWorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerObjectProxy&, double timeOrigin, PassOwnPtr<WorkerScriptStartupData>);
 
     WorkerObjectProxy& m_workerObjectProxy;
     double m_timeOrigin;