A new WM bootstrap flow

mojo/services/view_manager/view_manager_init_service_context.cc

+// 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.
+
+#include "mojo/services/view_manager/view_manager_init_service_context.h"
+
+#include "base/bind.h"
+#include "mojo/services/view_manager/root_node_manager.h"
+#include "mojo/services/view_manager/view_manager_init_service_impl.h"
+
+namespace mojo {
+namespace view_manager {
+namespace service {
+
+ViewManagerInitServiceContext::ViewManagerInitServiceContext()
+    : is_tree_host_ready_(false) {}
+ViewManagerInitServiceContext::~ViewManagerInitServiceContext() {}
+
+void ViewManagerInitServiceContext::AddConnection(
+    ViewManagerInitServiceImpl* connection) {
+  DCHECK(connections_.find(connection) == connections_.end());
+  connections_.insert(connection);
+}
+
+void ViewManagerInitServiceContext::RemoveConnection(
+    ViewManagerInitServiceImpl* connection) {
+  DCHECK(connections_.find(connection) != connections_.end());
+  connections_.erase(connection);
+}
+
+void ViewManagerInitServiceContext::ConfigureIncomingConnection(
+    ApplicationConnection* connection) {
+  if (!root_node_manager_.get()) {
+    root_node_manager_.reset(new RootNodeManager(
+        connection,
+        this,
+        base::Bind(&ViewManagerInitServiceContext::OnNativeViewportDeleted,
+                   base::Unretained(this))));
+  }
+}
+
+void ViewManagerInitServiceContext::OnNativeViewportDeleted() {
+  for (Connections::const_iterator it = connections_.begin();
+       it != connections_.end(); ++it) {
+    (*it)->OnNativeViewportDeleted();
+  }
+}
+
+void ViewManagerInitServiceContext::OnRootViewManagerWindowTreeHostCreated() {
+  DCHECK(!is_tree_host_ready_);
+  is_tree_host_ready_ = true;
+  for (Connections::const_iterator it = connections_.begin();
+       it != connections_.end(); ++it) {
+    (*it)->OnRootViewManagerWindowTreeHostCreated();

[sky, 2014/07/24 16:43:28]

The ordering here feels very fragile. In so far as it seems easy to accidentally
give the wrong connection all priviledges. Maybe we should tag the first
connection specially so that when we EmbedRoot we can verify we really want to
give it all permissions.

+  }
+}
+
+}  // namespace service
+}  // namespace view_manager
+}  // namespace mojo