Mojo: Eliminate SyncDispatcher in favor of WaitForIncomingMethodCall

mojo/public/cpp/bindings/sync_dispatcher.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_SYNC_DISPATCHER_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_SYNC_DISPATCHER_H_
-
-#include "mojo/public/cpp/bindings/lib/filter_chain.h"
-#include "mojo/public/cpp/bindings/lib/message_header_validator.h"
-#include "mojo/public/cpp/system/core.h"
-
-namespace mojo {
-
-class MessageReceiver;
-
-// Waits for one message to arrive on the message pipe, and dispatch it to the
-// receiver. Returns true on success, false on failure.
-//
-// NOTE: The message hasn't been validated and may be malformed!
-bool WaitForMessageAndDispatch(MessagePipeHandle handle,
-                               mojo::MessageReceiver* receiver);
-
-template<typename Interface> class SyncDispatcher {
- public:
-  SyncDispatcher(ScopedMessagePipeHandle message_pipe, Interface* sink)
-      : message_pipe_(message_pipe.Pass()) {
-    stub_.set_sink(sink);
-
-    filters_.Append<internal::MessageHeaderValidator>();
-    filters_.Append<typename Interface::RequestValidator_>();
-    filters_.SetSink(&stub_);
-  }
-
-  bool WaitAndDispatchOneMessage() {
-    return WaitForMessageAndDispatch(message_pipe_.get(),
-                                     filters_.GetHead());
-  }
-
- private:
-  ScopedMessagePipeHandle message_pipe_;
-  typename Interface::Stub_ stub_;
-  internal::FilterChain filters_;
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_SYNC_DISPATCHER_H_