Update CrOS to use scoped_refptr<T>::get() rather than implicit "operator T*"

chromeos/process_proxy/process_proxy.cc

 // Copyright (c) 2012 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 "chromeos/process_proxy/process_proxy.h"
 
 #include <fcntl.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
 
@@ skipping 87 matching lines @@
   // |watch| thread is blocked by |output_watcher| from now on.
   watch_thread->message_loop()->PostTask(FROM_HERE,
       base::Bind(&ProcessOutputWatcher::Start,
                  base::Unretained(output_watcher)));
   watcher_started_ = true;
   return true;
 }
 
 void ProcessProxy::OnProcessOutput(ProcessOutputType type,
                                    const std::string& output) {
-  if (!callback_runner_)
+  if (!callback_runner_.get())
     return;
 
   callback_runner_->PostTask(
       FROM_HERE,
       base::Bind(&ProcessProxy::CallOnProcessOutputCallback,
                  this, type, output));
 }
 
 void ProcessProxy::CallOnProcessOutputCallback(ProcessOutputType type,
                                                const std::string& output) {
@@ skipping 137 matching lines @@
   ClearFdPair(pt_pair_);
   ClearFdPair(shutdown_pipe_);
 }
 
 void ProcessProxy::ClearFdPair(int* pipe) {
   pipe[PIPE_END_READ] = kInvalidFd;
   pipe[PIPE_END_WRITE] = kInvalidFd;
 }
 
 }  // namespace chromeos