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

third_party/WebKit/public/platform/modules/nfc/WebNFCClient.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebNFCClient_h
 #define WebNFCClient_h
 
 #include "public/platform/WebCallbacks.h"
-#include "public/platform/WebPassOwnPtr.h"
+
+#include <memory>
 
 namespace blink {
 
 enum class WebNFCError;
 struct WebNFCMessage;
 class WebNFCObserver;
 struct WebNFCPushOptions;
 enum class WebNFCPushTarget;
 struct WebNFCWatchOptions;
 
@@ skipping 32 matching lines @@
 
     // Methods that are required to implement suspended state.
     // See https://w3c.github.io/web-nfc/#nfc-suspended
     virtual void suspendNFCOperations() = 0;
     virtual void resumeNFCOperations() = 0;
 };
 
 } // namespace blink
 
 #endif // WebNFCClient_h