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

content/plugin/plugin_channel.h

 // 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.
 
 #ifndef CONTENT_PLUGIN_PLUGIN_CHANNEL_H_
 #define CONTENT_PLUGIN_PLUGIN_CHANNEL_H_
 
 #include <vector>
 #include "base/memory/ref_counted.h"
 #include "base/process/process.h"
@@ skipping 33 matching lines @@
   // Returns the event that's set when a call to the renderer causes a modal
   // dialog to come up.
   virtual base::WaitableEvent* GetModalDialogEvent(int render_view_id) override;
 
   bool in_send() { return in_send_ != 0; }
 
   bool incognito() { return incognito_; }
   void set_incognito(bool value) { incognito_ = value; }
 
 #if defined(OS_POSIX)
-  int TakeRendererFileDescriptor() {
+  base::ScopedFD TakeRendererFileDescriptor() {
     return channel_->TakeClientFileDescriptor();
   }
 #endif
 
  protected:
   virtual ~PluginChannel();
 
   // NPChannelBase::
   virtual void CleanUp() override;
   virtual bool Init(base::MessageLoopProxy* ipc_message_loop,
@@ skipping 33 matching lines @@
   // Dummy NPP value used in the plugin process to represent entities other
   // that other plugin instances for the purpose of object ownership tracking.
   scoped_ptr<struct _NPP> npp_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginChannel);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PLUGIN_PLUGIN_CHANNEL_H_