Nuke WebPassOwnPtr<T> and replace it with std::unique_ptr<T>.

third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h

Index: third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
diff --git a/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h b/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
index 0beb484c3cd48debfa2fcc3614a9de67961d93d2..d853fb1ef1cbca0e7babe57aed8556d5eb163677 100644
--- a/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
+++ b/third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerProvider.h
@@ -32,10 +32,11 @@
 #define WebServiceWorkerProvider_h
 
 #include "public/platform/WebCallbacks.h"
-#include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/WebVector.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerRegistration.h"
 
+#include <memory>
+
 namespace blink {
 
 class WebURL;
@@ -52,13 +53,12 @@ public:
     // events. Must be cleared before the client becomes invalid.
     virtual void setClient(WebServiceWorkerProviderClient*) { }
 
-    using WebServiceWorkerRegistrationCallbacks = WebCallbacks<WebPassOwnPtr<WebServiceWorkerRegistration::Handle>, const WebServiceWorkerError&>;
-    using WebServiceWorkerGetRegistrationCallbacks = WebCallbacks<WebPassOwnPtr<WebServiceWorkerRegistration::Handle>, const WebServiceWorkerError&>;
+    using WebServiceWorkerRegistrationCallbacks = WebCallbacks<std::unique_ptr<WebServiceWorkerRegistration::Handle>, const WebServiceWorkerError&>;
+    using WebServiceWorkerGetRegistrationCallbacks = WebCallbacks<std::unique_ptr<WebServiceWorkerRegistration::Handle>, const WebServiceWorkerError&>;
 
     // Each element's ownership is transferred.
-    // TODO(yhirano): Consider using vector<std::unique_ptr<>>.
-    using WebServiceWorkerGetRegistrationsCallbacks = WebCallbacks<WebPassOwnPtr<WebVector<WebServiceWorkerRegistration::Handle*>>, const WebServiceWorkerError&>;
-    using WebServiceWorkerGetRegistrationForReadyCallbacks = WebCallbacks<WebPassOwnPtr<WebServiceWorkerRegistration::Handle>, void>;
+    using WebServiceWorkerGetRegistrationsCallbacks = WebCallbacks<std::unique_ptr<WebVector<WebServiceWorkerRegistration::Handle*>>, const WebServiceWorkerError&>;
+    using WebServiceWorkerGetRegistrationForReadyCallbacks = WebCallbacks<std::unique_ptr<WebServiceWorkerRegistration::Handle>, void>;
 
     virtual void registerServiceWorker(const WebURL& pattern, const WebURL& scriptUrl, WebServiceWorkerRegistrationCallbacks*) { }
     virtual void getRegistration(const WebURL& documentURL, WebServiceWorkerGetRegistrationCallbacks*) { }