Remove OwnPtr from Blink.

third_party/WebKit/Source/modules/indexeddb/IDBCursor.h

Index: third_party/WebKit/Source/modules/indexeddb/IDBCursor.h
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBCursor.h b/third_party/WebKit/Source/modules/indexeddb/IDBCursor.h
index e4af6696ae706867e43b03ca3d819228e6c32545..57c97d5b7636f65e6c513fcb46c153ae89f6bb30 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBCursor.h
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBCursor.h
@@ -35,6 +35,7 @@
 #include "public/platform/modules/indexeddb/WebIDBTypes.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
+#include <memory>
 
 namespace blink {
 
@@ -49,7 +50,7 @@ class IDBCursor : public GarbageCollectedFinalized<IDBCursor>, public ScriptWrap
 public:
     static WebIDBCursorDirection stringToDirection(const String& modeString);
 
-    static IDBCursor* create(PassOwnPtr<WebIDBCursor>, WebIDBCursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*);
+    static IDBCursor* create(std::unique_ptr<WebIDBCursor>, WebIDBCursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*);
     virtual ~IDBCursor();
     DECLARE_TRACE();
     void contextWillBeDestroyed() { m_backend.reset(); }
@@ -83,12 +84,12 @@ public:
     virtual bool isCursorWithValue() const { return false; }
 
 protected:
-    IDBCursor(PassOwnPtr<WebIDBCursor>, WebIDBCursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*);
+    IDBCursor(std::unique_ptr<WebIDBCursor>, WebIDBCursorDirection, IDBRequest*, IDBAny* source, IDBTransaction*);
 
 private:
     IDBObjectStore* effectiveObjectStore() const;
 
-    OwnPtr<WebIDBCursor> m_backend;
+    std::unique_ptr<WebIDBCursor> m_backend;
     Member<IDBRequest> m_request;
     const WebIDBCursorDirection m_direction;
     Member<IDBAny> m_source;