Mojo C++ bindings: introduce public associated-interface-related types.

mojo/public/cpp/bindings/lib/multiplex_router.cc

 // 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.
 
 #include "mojo/public/cpp/bindings/lib/multiplex_router.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
+#include "mojo/public/cpp/bindings/associated_group.h"
 #include "mojo/public/cpp/bindings/lib/interface_endpoint_client.h"
 
 namespace mojo {
 namespace internal {
 
 // InterfaceEndpoint stores the information of an interface endpoint registered
 // with the router. Always accessed under the router's lock.
 // No one other than the router's |endpoints_| and |tasks_| should hold refs to
 // this object.
 class MultiplexRouter::InterfaceEndpoint
@@ skipping 257 matching lines @@
 
 void MultiplexRouter::RaiseError() {
   if (task_runner_->BelongsToCurrentThread()) {
     connector_.RaiseError();
   } else {
     task_runner_->PostTask(FROM_HERE,
                            base::Bind(&MultiplexRouter::RaiseError, this));
   }
 }
 
+scoped_ptr<AssociatedGroup> MultiplexRouter::CreateAssociatedGroup() {
+  scoped_ptr<AssociatedGroup> group(new AssociatedGroup);
+  group->router_ = this;
+  return group.Pass();
+}
+
+// static
+MultiplexRouter* MultiplexRouter::GetRouter(AssociatedGroup* associated_group) {
+  return associated_group->router_.get();
+}
+
 ScopedMessagePipeHandle MultiplexRouter::PassMessagePipe() {
   DCHECK(thread_checker_.CalledOnValidThread());
   {
     base::AutoLock locker(lock_);
     DCHECK(endpoints_.empty() || (endpoints_.size() == 1 &&
                                   ContainsKey(endpoints_, kMasterInterfaceId)));
   }
   return connector_.PassMessagePipe();
 }
 
@@ skipping 213 matching lines @@
 }
 
 void MultiplexRouter::RaiseErrorInNonTestingMode() {
   lock_.AssertAcquired();
   if (!testing_mode_)
     RaiseError();
 }
 
 }  // namespace internal
 }  // namespace mojo