Refactoring: Make IPC::Channel::TakeClientFileDescriptor() a ScopedFD.

content/common/child_process_host_impl.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 "content/common/child_process_host_impl.h"
 
 #include <limits>
 
 #include "base/atomic_sequence_num.h"
 #include "base/command_line.h"
@@ skipping 170 matching lines @@
   opening_channel_ = true;
 
   return channel_id_;
 }
 
 bool ChildProcessHostImpl::IsChannelOpening() {
   return opening_channel_;
 }
 
 #if defined(OS_POSIX)
-int ChildProcessHostImpl::TakeClientFileDescriptor() {
+base::ScopedFD ChildProcessHostImpl::TakeClientFileDescriptor() {
   return channel_->TakeClientFileDescriptor();
 }
 #endif
 
 bool ChildProcessHostImpl::Send(IPC::Message* message) {
   if (!channel_) {
     delete message;
     return false;
   }
   return channel_->Send(message);
@@ skipping 149 matching lines @@
 
 void ChildProcessHostImpl::GpuMemoryBufferAllocated(
     IPC::Message* reply,
     const gfx::GpuMemoryBufferHandle& handle) {
   ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer::WriteReplyParams(reply,
                                                                     handle);
   Send(reply);
 }
 
 }  // namespace content