Convert Pass()→std::move() for CrOS extension code.

extensions/browser/api/webcam_private/visca_webcam.cc

 // 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.
 
 #include "extensions/browser/api/webcam_private/visca_webcam.h"
 
 #include <stddef.h>
 #include <stdint.h>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace {
 
@@ skipping 463 matching lines @@
   }
   if (zoom) {
     // Set the default zoom value to 100 to be consistent with V4l2 webcam.
     const int kDefaultZoom = 100;
     SetZoom(kDefaultZoom, callback);
   }
 }
 
 void ViscaWebcam::OpenForTesting(
     scoped_ptr<SerialConnection> serial_connection) {
-  serial_connection_ = serial_connection.Pass();
+  serial_connection_ = std::move(serial_connection);
 }
 
 SerialConnection* ViscaWebcam::GetSerialConnectionForTesting() {
   return serial_connection_.get();
 }
 
 }  // namespace extensions