Fix crash on second failed connect to a paired device

device/bluetooth/bluetooth_socket_chromeos.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 "device/bluetooth/bluetooth_socket_chromeos.h"
 
 #include <queue>
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 110 matching lines @@
     const base::Closure& success_callback,
     const ErrorCompletionCallback& error_callback) {
   DCHECK(ui_task_runner()->RunsTasksOnCurrentThread());
   DCHECK(!profile_);
 
   if (!uuid.IsValid()) {
     error_callback.Run(kInvalidUUID);
     return;
   }
 
-  adapter_ = adapter;
-  adapter_->AddObserver(this);
+  adapter->AddObserver(this);
 
   uuid_ = uuid;
   options_.reset(new BluetoothProfileManagerClient::Options());
   if (service_options.name)
     options_->name.reset(new std::string(*service_options.name));
 
   switch (socket_type) {
     case kRfcomm:
       options_->channel.reset(
           new uint16(service_options.channel ? *service_options.channel : 0));
       break;
     case kL2cap:
       options_->psm.reset(
           new uint16(service_options.psm ? *service_options.psm : 0));
       break;
     default:
       NOTREACHED();
   }
 
-  RegisterProfile(static_cast<BluetoothAdapterChromeOS*>(adapter_.get()),
+  RegisterProfile(static_cast<BluetoothAdapterChromeOS*>(adapter.get()),
                   success_callback, error_callback);
 }
 
 void BluetoothSocketChromeOS::Close() {
   DCHECK(ui_task_runner()->RunsTasksOnCurrentThread());
 
   if (profile_)
     UnregisterProfile();
 
   // In the case below, where an asynchronous task gets posted on the socket
@@ skipping 52 matching lines @@
 }
 
 void BluetoothSocketChromeOS::RegisterProfile(
     BluetoothAdapterChromeOS* adapter,
     const base::Closure& success_callback,
     const ErrorCompletionCallback& error_callback) {
   DCHECK(ui_task_runner()->RunsTasksOnCurrentThread());
   DCHECK(!profile_);
   DCHECK(adapter);
 
+  adapter_ = adapter;
+
   // If the adapter is not present, this is a listening socket and the
   // adapter isn't running yet.  Report success and carry on;
   // the profile will be registered when the daemon becomes available.
-  if (!adapter->IsPresent()) {
+  if (!adapter_->IsPresent()) {
     VLOG(1) << uuid_.canonical_value() << " on " << device_path_.value()
             << ": Delaying profile registration.";
     base::MessageLoop::current()->PostTask(FROM_HERE, success_callback);
     return;
   }
 
   VLOG(1) << uuid_.canonical_value() << " on " << device_path_.value()
           << ": Acquiring profile.";
 
   adapter->UseProfile(
@@ skipping 319 matching lines @@
 void BluetoothSocketChromeOS::ReleaseProfile(
     BluetoothAdapterProfileChromeOS* profile) {
   if (adapter_)
     static_cast<BluetoothAdapterChromeOS*>(adapter_.get())
         ->ReleaseProfile(uuid_);
   else
     delete profile;
 }
 
 }  // namespace chromeos