Changes ownership of WindowTreeClient

ui/views/mus/window_manager_connection.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 "ui/views/mus/window_manager_connection.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
@@ skipping 122 matching lines @@
   ui::OSExchangeDataProviderFactory::SetFactory(this);
 
   ViewsDelegate::GetInstance()->set_native_widget_factory(base::Bind(
       &WindowManagerConnection::CreateNativeWidgetMus,
       base::Unretained(this),
       std::map<std::string, std::vector<uint8_t>>()));
 }
 
 void WindowManagerConnection::OnEmbed(ui::Window* root) {}
 
-void WindowManagerConnection::OnDidDestroyClient(ui::WindowTreeClient* client) {
-  if (client_.get() == client) {
-    client_.release();
-  } else {
-    DCHECK(!client_);
-  }
+void WindowManagerConnection::OnLostConnection(ui::WindowTreeClient* client) {
+  DCHECK_EQ(client, client_.get());
+  client_.reset();
+}
+
+void WindowManagerConnection::OnEmbedRootDestroyed(ui::Window* root) {
+  // Not called for WindowManagerConnection as WindowTreeClient isn't created by
+  // way of an Embed().
+  NOTREACHED();
 }
 
 void WindowManagerConnection::OnPointerEventObserved(
     const ui::PointerEvent& event,
     ui::Window* target) {
   pointer_watcher_event_router_->OnPointerEventObserved(event, target);
 }
 
 void WindowManagerConnection::OnWindowManagerFrameValuesChanged() {
   if (client_)
     NativeWidgetMus::NotifyFrameChanged(client_.get());
 }
 
 gfx::Point WindowManagerConnection::GetCursorScreenPoint() {
   return client_->GetCursorScreenPoint();
 }
 
 std::unique_ptr<OSExchangeData::Provider>
 WindowManagerConnection::BuildProvider() {
   return base::MakeUnique<OSExchangeDataProviderMus>();
 }
 
 }  // namespace views