workers: Rename WorkerThread to WorkerScript.

Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp

Index: Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp
diff --git a/Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp b/Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp
index 663115cd1a66e557a7c54c44fef276a8a8c7ad29..2553c2cb4688f3071dded7bfd7af21a52fca05ec 100644
--- a/Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp
+++ b/Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp
@@ -5,7 +5,7 @@
 #include "config.h"
 #include "modules/compositorworker/CompositorWorkerMessagingProxy.h"
 
-#include "core/workers/WorkerThreadStartupData.h"
+#include "core/workers/WorkerScriptStartupData.h"
 #include "modules/compositorworker/CompositorWorkerThread.h"
 
 namespace blink {
@@ -19,7 +19,7 @@ CompositorWorkerMessagingProxy::~CompositorWorkerMessagingProxy()
 {
 }
 
-PassRefPtr<WorkerThread> CompositorWorkerMessagingProxy::createWorkerThread(double originTime, PassOwnPtr<WorkerThreadStartupData> startupData)
+PassRefPtr<WorkerScript> CompositorWorkerMessagingProxy::createWorkerScript(double originTime, PassOwnPtr<WorkerScriptStartupData> startupData)
 {
     return CompositorWorkerThread::create(loaderProxy(), workerObjectProxy(), originTime, startupData);
 }