workers: Rename WorkerThread to WorkerScript.

Source/core/workers/DedicatedWorkerMessagingProxy.cpp

Index: Source/core/workers/DedicatedWorkerMessagingProxy.cpp
diff --git a/Source/core/workers/DedicatedWorkerMessagingProxy.cpp b/Source/core/workers/DedicatedWorkerMessagingProxy.cpp
index 5cd42d2a5aeac7a564c77fe3dd3212a193dcb819..d29ba39af46c50ba9b14976ef9c9d08099b8b3b7 100644
--- a/Source/core/workers/DedicatedWorkerMessagingProxy.cpp
+++ b/Source/core/workers/DedicatedWorkerMessagingProxy.cpp
@@ -7,7 +7,7 @@
 
 #include "core/workers/DedicatedWorkerThread.h"
 #include "core/workers/WorkerClients.h"
-#include "core/workers/WorkerThreadStartupData.h"
+#include "core/workers/WorkerScriptStartupData.h"
 
 namespace blink {
 
@@ -20,7 +20,7 @@ DedicatedWorkerMessagingProxy::~DedicatedWorkerMessagingProxy()
 {
 }
 
-PassRefPtr<WorkerThread> DedicatedWorkerMessagingProxy::createWorkerThread(double originTime, PassOwnPtr<WorkerThreadStartupData> startupData)
+PassRefPtr<WorkerScript> DedicatedWorkerMessagingProxy::createWorkerScript(double originTime, PassOwnPtr<WorkerScriptStartupData> startupData)
 {
     return DedicatedWorkerThread::create(loaderProxy(), workerObjectProxy(), originTime, startupData);
 }