Worker: Reduce use of ExecutionContextTask in core/workers

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

Index: third_party/WebKit/Source/core/workers/WorkerThread.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerThread.h b/third_party/WebKit/Source/core/workers/WorkerThread.h
index d3af4f3ac85540a7c3938ee202f0001beee50472..ac302a8792ffe3b862dd53bb983d17bb150eb4db 100644
--- a/third_party/WebKit/Source/core/workers/WorkerThread.h
+++ b/third_party/WebKit/Source/core/workers/WorkerThread.h
@@ -28,7 +28,6 @@
 #define WorkerThread_h
 
 #include "core/CoreExport.h"
-#include "core/dom/ExecutionContextTask.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerThreadLifecycleObserver.h"
@@ -136,10 +135,6 @@ class CORE_EXPORT WorkerThread : public WebThread::TaskObserver {
     return m_workerReportingProxy;
   }
 
-  // DEPRECATED: Use postTask() for WTF::CrossThreadClosure instead.
-  // TODO(nhiroki): Remove this after https://crbug.com/625927 is completed.
-  void postTask(const WebTraceLocation&, std::unique_ptr<ExecutionContextTask>);
-
   void postTask(const WebTraceLocation&,
                 std::unique_ptr<WTF::CrossThreadClosure>);
   void appendDebuggerTask(std::unique_ptr<CrossThreadClosure>);
@@ -250,7 +245,7 @@ class CORE_EXPORT WorkerThread : public WebThread::TaskObserver {
   void initializeOnWorkerThread(std::unique_ptr<WorkerThreadStartupData>);
   void prepareForShutdownOnWorkerThread();
   void performShutdownOnWorkerThread();
-  void performTaskOnWorkerThread(std::unique_ptr<ExecutionContextTask>);
+  void performTaskOnWorkerThread(std::unique_ptr<CrossThreadClosure>);
   void performDebuggerTaskOnWorkerThread(std::unique_ptr<CrossThreadClosure>);
   void performDebuggerTaskDontWaitOnWorkerThread();