ipc: Use a global for the process's attachment broker.

content/public/common/child_process_host.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_PUBLIC_COMMON_CHILD_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_H_
 
 #include "base/files/scoped_file.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
@@ skipping 53 matching lines @@
   // pathname was specified on the command line, that will be used.  Otherwise,
   // the default child process pathname will be returned.  On most platforms,
   // this will be the same as the currently-executing process.
   //
   // The |flags| argument accepts one or more flags such as CHILD_ALLOW_SELF.
   // Pass only CHILD_NORMAL if none of these special behaviors are required.
   //
   // On failure, returns an empty FilePath.
   static base::FilePath GetChildPath(int flags);
 
-  // Returns an AttachmentBroker used to broker attachments of IPC messages to
-  // child processes.
-  static IPC::AttachmentBrokerPrivileged* GetAttachmentBroker();
-
   // Send the shutdown message to the child process.
   // Does not check with the delegate's CanShutdown.
   virtual void ForceShutdown() = 0;
 
   // Creates the IPC channel.  Returns the channel id if it succeeded, an
   // empty string otherwise
   virtual std::string CreateChannel() = 0;
 
   // Returns true iff the IPC channel is currently being opened;
   virtual bool IsChannelOpening() = 0;
 
   // Adds an IPC message filter.  A reference will be kept to the filter.
   virtual void AddFilter(IPC::MessageFilter* filter) = 0;
 
 #if defined(OS_POSIX)
   // See IPC::Channel::TakeClientFileDescriptor.
   virtual base::ScopedFD TakeClientFileDescriptor() = 0;
 #endif
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_HOST_H_