Revert "Remove OwnPtr from Blink."

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

Index: third_party/WebKit/Source/core/workers/SharedWorkerThread.h
diff --git a/third_party/WebKit/Source/core/workers/SharedWorkerThread.h b/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
index c0286d07f38e956a81d5f8ebe37066e979da9e51..0945805249dcc3786a0b431258d0b392c9f291d7 100644
--- a/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
+++ b/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
@@ -33,7 +33,6 @@
 #include "core/CoreExport.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/workers/WorkerThread.h"
-#include <memory>
 
 namespace blink {
 
@@ -41,18 +40,18 @@ class WorkerThreadStartupData;
 
 class CORE_EXPORT SharedWorkerThread : public WorkerThread {
 public:
-    static std::unique_ptr<SharedWorkerThread> create(const String& name, PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
+    static PassOwnPtr<SharedWorkerThread> create(const String& name, PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
     ~SharedWorkerThread() override;
 
     WorkerBackingThread& workerBackingThread() override { return *m_workerBackingThread; }
 
 protected:
-    WorkerGlobalScope* createWorkerGlobalScope(std::unique_ptr<WorkerThreadStartupData>) override;
+    WorkerGlobalScope* createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData>) override;
 
 private:
     SharedWorkerThread(const String& name, PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
 
-    std::unique_ptr<WorkerBackingThread> m_workerBackingThread;
+    OwnPtr<WorkerBackingThread> m_workerBackingThread;
     String m_name;
 };