Support custom message filtering on Mojo binding objects

mojo/public/cpp/bindings/lib/router.h

 // Copyright 2014 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 MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_checker.h"
 #include "mojo/public/cpp/bindings/connector.h"
-#include "mojo/public/cpp/bindings/lib/filter_chain.h"
+#include "mojo/public/cpp/bindings/filter_chain.h"
+#include "mojo/public/cpp/bindings/message.h"
 
 namespace mojo {
 namespace internal {
 
 // TODO(yzshen): Consider removing this class and use MultiplexRouter in all
 // cases. crbug.com/594244
 class Router : public MessageReceiverWithResponder {
  public:
   Router(ScopedMessagePipeHandle message_pipe,
          FilterChain filters,
@@ skipping 19 matching lines @@
     DCHECK(thread_checker_.CalledOnValidThread());
     return encountered_error_;
   }
 
   // Is the router bound to a MessagePipe handle?
   bool is_valid() const {
     DCHECK(thread_checker_.CalledOnValidThread());
     return connector_.is_valid();
   }
 
+  void AddFilter(std::unique_ptr<MessageReceiver> filter);
+
   // Please note that this method shouldn't be called unless it results from an
   // explicit request of the user of bindings (e.g., the user sets an
   // InterfacePtr to null or closes a Binding).
   void CloseMessagePipe() {
     DCHECK(thread_checker_.CalledOnValidThread());
     connector_.CloseMessagePipe();
   }
 
   ScopedMessagePipeHandle PassMessagePipe() {
     DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 99 matching lines @@
   bool encountered_error_;
   base::Closure error_handler_;
   base::ThreadChecker thread_checker_;
   base::WeakPtrFactory<Router> weak_factory_;
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_