Add MemoryCoordinator

components/memory_coordinator/child/child_memory_coordinator_impl.cc

 // Copyright 2016 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 "components/memory_coordinator/child/child_memory_coordinator_impl.h"
 
 namespace memory_coordinator {
 
 ChildMemoryCoordinatorImpl::ChildMemoryCoordinatorImpl(
-      mojo::InterfaceRequest<mojom::ChildMemoryCoordinator> request,
-      scoped_refptr<ClientList> clients)
-    : binding_(this, std::move(request)),
-      clients_(clients) {}
+    shell::InterfaceProvider* remote_interfaces)
+    : binding_(this), clients_(new ClientList) {
+  if (remote_interfaces) {
+    remote_interfaces->GetInterface(mojo::GetProxy(&parent_));
+    parent_->AddChild(binding_.CreateInterfacePtrAndBind());
+  }
+}
 
-ChildMemoryCoordinatorImpl::~ChildMemoryCoordinatorImpl() {}
+ChildMemoryCoordinatorImpl::~ChildMemoryCoordinatorImpl() {
+}
+
+void ChildMemoryCoordinatorImpl::RegisterClient(
+    MemoryCoordinatorClient* client) {
+  clients_->AddObserver(client);
+}
+
+void ChildMemoryCoordinatorImpl::UnregisterClient(
+    MemoryCoordinatorClient* client) {
+  clients_->RemoveObserver(client);
+}
 
 void ChildMemoryCoordinatorImpl::OnStateChange(mojom::MemoryState state) {
   clients_->Notify(FROM_HERE, &MemoryCoordinatorClient::OnMemoryStateChange,
                    state);
 }
 
 }  // namespace memory_coordinator