Mojo C++ bindings: add more perf tests for Router/MultiplexRouter.

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>
@@ skipping 114 matching lines @@
   // Returns true if this Router has any pending callbacks.
   bool has_pending_responders() const {
     DCHECK(thread_checker_.CalledOnValidThread());
     return !async_responders_.empty() || !sync_responses_.empty();
   }
 
   ControlMessageProxy* control_message_proxy() {
     return &control_message_proxy_;
   }
 
+  bool SimulateReceivingMessageForTesting(Message* message) {
+    return filters_.Accept(message);
+  }
+
  private:
   // Maps from the id of a response to the MessageReceiver that handles the
   // response.
   using AsyncResponderMap =
       std::map<uint64_t, std::unique_ptr<MessageReceiver>>;
 
   struct SyncResponseInfo {
    public:
     explicit SyncResponseInfo(bool* in_response_received);
     ~SyncResponseInfo();
@@ skipping 45 matching lines @@
   ControlMessageProxy control_message_proxy_;
   ControlMessageHandler control_message_handler_;
   base::ThreadChecker thread_checker_;
   base::WeakPtrFactory<Router> weak_factory_;
 };
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_