Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h

Index: third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h
index 7328fbfb9e52f59930cdb42a02e6c80f3631e4c4..0a178d4ac075a74c9c25b3d8a3e8a3332882fda1 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerThread.h
@@ -33,7 +33,6 @@
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/workers/WorkerThread.h"
 #include "modules/ModulesExport.h"
-#include <memory>
 
 namespace blink {
 
@@ -41,17 +40,17 @@ class WorkerThreadStartupData;
 
 class MODULES_EXPORT ServiceWorkerThread final : public WorkerThread {
 public:
-    static std::unique_ptr<ServiceWorkerThread> create(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
+    static PassOwnPtr<ServiceWorkerThread> create(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
     ~ServiceWorkerThread() override;
 
     WorkerBackingThread& workerBackingThread() override { return *m_workerBackingThread; }
 
 protected:
-    WorkerGlobalScope* createWorkerGlobalScope(std::unique_ptr<WorkerThreadStartupData>) override;
+    WorkerGlobalScope* createWorkerGlobalScope(PassOwnPtr<WorkerThreadStartupData>) override;
 
 private:
     ServiceWorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
-    std::unique_ptr<WorkerBackingThread> m_workerBackingThread;
+    OwnPtr<WorkerBackingThread> m_workerBackingThread;
 };
 
 } // namespace blink