Use std::move() instead of .Pass() in remoting/host

remoting/host/desktop_shape_tracker_win.cc

 // Copyright 2013 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 "remoting/host/desktop_shape_tracker.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 50 matching lines @@
   // Accumulate a new desktop shape from current window positions.
   scoped_ptr<EnumDesktopShapeData> shape_data(new EnumDesktopShapeData);
   if (!EnumWindows(EnumWindowsCallback, (LPARAM)shape_data.get())) {
     PLOG(ERROR) << "Failed to enumerate windows";
     desktop_shape_.Clear();
     return;
   }
 
   // If the shape has changed, refresh |desktop_shape_|.
   if (!EqualRgn(shape_data->desktop_region.get(), old_desktop_region_.get())) {
-    old_desktop_region_ = shape_data->desktop_region.Pass();
+    old_desktop_region_ = std::move(shape_data->desktop_region);
 
     // Determine the size of output buffer required to receive the region.
     DWORD bytes_size = GetRegionData(old_desktop_region_.get(), 0, nullptr);
     CHECK(bytes_size != 0);
 
     // Fetch the Windows RECTs that comprise the region.
     std::vector<char> buffer(bytes_size);
     LPRGNDATA region_data = reinterpret_cast<LPRGNDATA>(buffer.data());
     DWORD result =
         GetRegionData(old_desktop_region_.get(), bytes_size, region_data);
@@ skipping 55 matching lines @@
 
 } // namespace
 
 // static
 scoped_ptr<DesktopShapeTracker> DesktopShapeTracker::Create(
     webrtc::DesktopCaptureOptions options) {
   return make_scoped_ptr(new DesktopShapeTrackerWin());
 }
 
 }  // namespace remoting