Convert Pass()→std::move() for Mac build.

device/bluetooth/bluetooth_l2cap_channel_mac.mm

 // Copyright 2014 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 "device/bluetooth/bluetooth_l2cap_channel_mac.h"
 
 #include "base/logging.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "device/bluetooth/bluetooth_classic_device_mac.h"
 #include "device/bluetooth/bluetooth_socket_mac.h"
@@ skipping 81 matching lines @@
   [channel->delegate_ retain];
   IOBluetoothL2CAPChannel* l2cap_channel;
   *status = [device openL2CAPChannelAsync:&l2cap_channel
                                   withPSM:psm
                                  delegate:channel->delegate_];
   if (*status == kIOReturnSuccess)
     channel->channel_.reset([l2cap_channel retain]);
   else
     channel.reset();
 
-  return channel.Pass();
+  return channel;
 }
 
 void BluetoothL2capChannelMac::SetSocket(BluetoothSocketMac* socket) {
   BluetoothChannelMac::SetSocket(socket);
   if (!this->socket())
     return;
 
   // Now that the socket is set, it's safe to associate a delegate, which can
   // call back to the socket.
   DCHECK(!delegate_);
@@ skipping 51 matching lines @@
     void* refcon,
     IOReturn status) {
   // Note: We use "CHECK" below to ensure we never run into unforeseen
   // occurrences of asynchronous callbacks, which could lead to data
   // corruption.
   CHECK_EQ(channel_, channel);
   socket()->OnChannelWriteComplete(refcon, status);
 }
 
 }  // namespace device