ipc: Move AttachmentBrokerPrivileged singleton logic into ipc/.

ipc/attachment_broker.h

 // Copyright 2015 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 IPC_ATTACHMENT_BROKER_H_
 #define IPC_ATTACHMENT_BROKER_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/process/process_handle.h"
 #include "ipc/brokerable_attachment.h"
 #include "ipc/ipc_export.h"
 #include "ipc/ipc_listener.h"
 
 // If the platform has no attachments that need brokering, then it shouldn't
 // compile any code that calls member functions of AttachmentBroker. This
 // prevents symbols only used by AttachmentBroker and its subclasses from
 // making it into the binary.
 #if defined(OS_WIN) || (defined(OS_MACOSX) && !defined(OS_IOS))
 #define USE_ATTACHMENT_BROKER 1
 #else
 #define USE_ATTACHMENT_BROKER 0
 #endif  // defined(OS_WIN)
 
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-namespace base {
-class PortProvider;
-}  // namespace base
-#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
-
 namespace IPC {
 
 class AttachmentBroker;
 class Endpoint;
 
 // Classes that inherit from this abstract base class are capable of
 // communicating with a broker to send and receive attachments to Chrome IPC
 // messages.
 class IPC_EXPORT SupportsAttachmentBrokering {
  public:
@@ skipping 44 matching lines @@
 
   // These two methods should only be called by the broker process.
   //
   // Each unprivileged process should have one IPC channel on which it
   // communicates attachment information with the broker process. In the broker
   // process, these channels must be registered and deregistered with the
   // Attachment Broker as they are created and destroyed.
   virtual void RegisterCommunicationChannel(Endpoint* endpoint);
   virtual void DeregisterCommunicationChannel(Endpoint* endpoint);
 
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  // This method should only be called by the broker process.
-  //
-  // The port provider must live as long as the AttachmentBroker. A port
-  // provider must be set before any attachment brokering occurs.
-  void set_port_provider(base::PortProvider* port_provider) {
-    DCHECK(!port_provider_);
-    port_provider_ = port_provider;
-  }
-#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
-
  protected:
   using AttachmentVector = std::vector<scoped_refptr<BrokerableAttachment>>;
 
   // Adds |attachment| to |attachments_|, and notifies the observers.
   void HandleReceivedAttachment(
       const scoped_refptr<BrokerableAttachment>& attachment);
 
   // Informs the observers that a new BrokerableAttachment has been received.
   void NotifyObservers(const BrokerableAttachment::AttachmentId& id);
 
   // This method is exposed for testing only.
   AttachmentVector* get_attachments() { return &attachments_; }
 
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  base::PortProvider* port_provider() const { return port_provider_; }
-#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
-
  private:
 #if defined(OS_WIN)
   FRIEND_TEST_ALL_PREFIXES(AttachmentBrokerUnprivilegedWinTest,
                            ReceiveValidMessage);
   FRIEND_TEST_ALL_PREFIXES(AttachmentBrokerUnprivilegedWinTest,
                            ReceiveInvalidMessage);
 #endif  // defined(OS_WIN)
 
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  base::PortProvider* port_provider_;
-#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
-
   // A vector of BrokerableAttachments that have been received, but not yet
   // consumed.
   // A std::vector is used instead of a std::map because this container is
   // expected to have few elements, for which a std::vector is expected to have
   // better performance.
   AttachmentVector attachments_;
 
   std::vector<Observer*> observers_;
   DISALLOW_COPY_AND_ASSIGN(AttachmentBroker);
 };
 
 }  // namespace IPC
 
 #endif  // IPC_ATTACHMENT_BROKER_H_