Remove some unused NaCl srpc methods (AttachService, ctor variant)

components/nacl/renderer/plugin/srpc_client.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.
  */
 
 // A representation of an SRPC connection.  These can be either to the
 // service runtime or to untrusted NaCl threads.
 
 #ifndef COMPONENTS_NACL_RENDERER_PLUGIN_SRPC_CLIENT_H_
 #define COMPONENTS_NACL_RENDERER_PLUGIN_SRPC_CLIENT_H_
 
 #include <map>
 #include <string>
 
 #include "components/nacl/renderer/plugin/utility.h"
 #include "native_client/src/include/nacl_macros.h"
 #include "native_client/src/shared/srpc/nacl_srpc.h"
 
 namespace nacl {
 class DescWrapper;
 }  // namespace nacl
 
 namespace plugin {
 
-class ErrorInfo;
 class MethodInfo;
-class Plugin;
 class SrpcParams;
 
 //  SrpcClient represents an SRPC connection to a client.
 class SrpcClient {
  public:
   // Factory method for creating SrpcClients.
   static SrpcClient* New(nacl::DescWrapper* wrapper);
 
   //  Init is passed a DescWrapper.  The SrpcClient performs service
   //  discovery and provides the interface for future rpcs.
   bool Init(nacl::DescWrapper* socket);
 
   //  The destructor closes the connection to sel_ldr.
   ~SrpcClient();
 
   //  Test whether the SRPC service has a given method.
   bool HasMethod(const std::string& method_name);
   //  Invoke an SRPC method.
   bool Invoke(const std::string& method_name, SrpcParams* params);
   // Get the error status from that last method invocation
-  NaClSrpcError GetLastError() { return last_error_; }
+  NaClSrpcError GetLastError() const { return last_error_; }
   bool InitParams(const std::string& method_name, SrpcParams* params);
 
-  // Attach a service for reverse-direction (from .nexe) RPCs.
-  void AttachService(NaClSrpcService* service, void* instance_data);
-
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(SrpcClient);
   SrpcClient();
   void GetMethods();
   typedef std::map<std::string, MethodInfo*> Methods;
   Methods methods_;
   NaClSrpcChannel srpc_channel_;
   bool srpc_channel_initialised_;
   NaClSrpcError last_error_;
 };
 
 }  // namespace plugin
 
 #endif  // COMPONENTS_NACL_RENDERER_PLUGIN_SRPC_CLIENT_H_