Add CommandBroker::OnTransaction to handle incoming transactions

chromeos/binder/command_stream.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 CHROMEOS_BINDER_COMMAND_STREAM_H_
 #define CHROMEOS_BINDER_COMMAND_STREAM_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 14 matching lines @@
 // Stream of incoming (binder driver to user process) BR_* commands and outgoing
 // (user process to binder driver) BC_* commands.
 class CHROMEOS_EXPORT CommandStream {
  public:
   // IncomingCommandHandler is responsible to handle incoming commands.
   class IncomingCommandHandler {
    public:
     virtual ~IncomingCommandHandler() {}
     // TODO(hashimoto): Add methods to handle incoming commands.
 
+    // Called to handle BR_TRANSACTION.
+    // |data| contains the parameters.
+    virtual bool OnTransaction(const TransactionData& data) = 0;
+
     // Called to handle BR_REPLY.
     // |data| is the reply for the previous transaction.
     virtual void OnReply(scoped_ptr<TransactionData> data) = 0;
 
     // Called to handle BR_DEAD_REPLY.
     virtual void OnDeadReply() = 0;
 
     // Called to handle BR_TRANSACTION_COMPLETE.
     virtual void OnTransactionComplete() = 0;
 
@@ skipping 51 matching lines @@
   scoped_ptr<BufferReader> incoming_data_reader_;
 
   base::WeakPtrFactory<CommandStream> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandStream);
 };
 
 }  // namespace binder
 
 #endif  // CHROMEOS_BINDER_COMMAND_STREAM_H_