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

remoting/codec/video_encoder_vpx_unittest.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/codec/video_encoder_vpx.h"
 
 #include <stdint.h>
 
 #include <limits>
 #include <vector>
@@ skipping 20 matching lines @@
   for (int x = 0; x < frame_size.width(); ++x) {
     for (int y = 0; y < frame_size.height(); ++y) {
       uint8_t* pixel_u8 = frame->data() + (y * frame->stride()) +
                           (x * webrtc::DesktopFrame::kBytesPerPixel);
       *(reinterpret_cast<uint32_t*>(pixel_u8)) =
           ((x + y) & 1) ? kGreenColor : kBlueColor;
     }
   }
   frame->mutable_updated_region()->SetRect(
       webrtc::DesktopRect::MakeSize(frame_size));
-  return frame.Pass();
+  return frame;
 }
 
 TEST(VideoEncoderVpxTest, Vp8) {
   scoped_ptr<VideoEncoderVpx> encoder(VideoEncoderVpx::CreateForVP8());
   TestVideoEncoder(encoder.get(), false);
 }
 
 TEST(VideoEncoderVpxTest, Vp9) {
   scoped_ptr<VideoEncoderVpx> encoder(VideoEncoderVpx::CreateForVP9());
   // VP9 encoder defaults to lossless encode and lossy (I420) color.
@@ skipping 125 matching lines @@
 
 TEST(VideoEncoderVpxTest, Vp9LossyUnchangedFrame) {
   scoped_ptr<VideoEncoderVpx> encoder(VideoEncoderVpx::CreateForVP9());
   encoder->SetLosslessEncode(false);
   // Expect that VP9+CR should generate no more than 10 top-off frames
   // per cycle, and take no more than 2 cycles to top-off.
   TestVideoEncoderEmptyFrames(encoder.get(), 20);
 }
 
 }  // namespace remoting