Adds WindowManagerManager to mus

components/mus/ws/window_manager_factory_registry.cc

Index: components/mus/ws/window_manager_factory_registry.cc
diff --git a/components/mus/ws/window_manager_factory_registry.cc b/components/mus/ws/window_manager_factory_registry.cc
new file mode 100644
index 0000000000000000000000000000000000000000..98cc53b0ed0b61909a1004acd89c2f22a8c4b25d
--- /dev/null
+++ b/components/mus/ws/window_manager_factory_registry.cc
@@ -0,0 +1,58 @@
+// 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/mus/ws/window_manager_factory_registry.h"
+
+#include "components/mus/ws/connection_manager.h"
+#include "components/mus/ws/window_manager_factory_service.h"
+
+namespace mus {
+namespace ws {
+
+WindowManagerFactoryRegistry::WindowManagerFactoryRegistry(
+    ConnectionManager* connection_manager)
+    : connection_manager_(connection_manager) {}
+
+WindowManagerFactoryRegistry::~WindowManagerFactoryRegistry() {}
+
+void WindowManagerFactoryRegistry::Register(
+    uint32_t user_id,
+    mojo::InterfaceRequest<mojom::WindowManagerFactoryService> request) {
+  for (auto& service_ptr : services_) {
+    if (service_ptr->user_id() == user_id) {
+      LOG(ERROR) << "WindowManagerFactoryService already registered for "
+                 << user_id;
+      return;
+    }
+  }
+
+  scoped_ptr<WindowManagerFactoryService> service(
+      new WindowManagerFactoryService(this, user_id, std::move(request)));
+  services_.push_back(std::move(service));
+}
+
+std::vector<WindowManagerFactoryService*>
+WindowManagerFactoryRegistry::GetServices() {
+  std::vector<WindowManagerFactoryService*> result;
+  for (auto& service_ptr : services_)
+    result.push_back(service_ptr.get());
+  return result;
+}
+
+void WindowManagerFactoryRegistry::OnWindowManagerFactoryConnectionLost(
+    WindowManagerFactoryService* service) {
+  for (auto it = services_.begin(); it != services_.end(); ++it) {
+    if (it->get() == service) {
+      services_.erase(it);
+      return;
+    }
+  }
+}
+
+void WindowManagerFactoryRegistry::OnWindowManagerFactorySet() {
+  connection_manager_->OnWindowManagerFactorySet();
+}
+
+}  // namespace ws
+}  // namespace mus