aura: Some change to how the client-lib is set up.

ui/aura/mus/window_tree_client.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 "ui/aura/mus/window_tree_client.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "mojo/public/cpp/bindings/map.h"
 #include "services/service_manager/public/cpp/connector.h"
 #include "services/ui/common/accelerator_util.h"
+#include "services/ui/public/cpp/gpu/gpu.h"
 #include "services/ui/public/cpp/property_type_converters.h"
 #include "services/ui/public/interfaces/constants.mojom.h"
 #include "services/ui/public/interfaces/window_manager.mojom.h"
 #include "services/ui/public/interfaces/window_manager_window_tree_factory.mojom.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/drag_drop_client.h"
 #include "ui/aura/client/transient_window_client.h"
+#include "ui/aura/env.h"
 #include "ui/aura/mus/capture_synchronizer.h"
 #include "ui/aura/mus/drag_drop_controller_mus.h"
 #include "ui/aura/mus/focus_synchronizer.h"
 #include "ui/aura/mus/in_flight_change.h"
 #include "ui/aura/mus/input_method_mus.h"
+#include "ui/aura/mus/mus_context_factory.h"
 #include "ui/aura/mus/property_converter.h"
 #include "ui/aura/mus/property_utils.h"
 #include "ui/aura/mus/window_manager_delegate.h"
 #include "ui/aura/mus/window_mus.h"
 #include "ui/aura/mus/window_port_mus.h"
 #include "ui/aura/mus/window_tree_client_delegate.h"
 #include "ui/aura/mus/window_tree_client_observer.h"
 #include "ui/aura/mus/window_tree_host_mus.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_delegate.h"
@@ skipping 99 matching lines @@
       ->GetDisplayNearestWindow(window)
       .device_scale_factor();
 }
 
 }  // namespace
 
 WindowTreeClient::WindowTreeClient(
     service_manager::Connector* connector,
     WindowTreeClientDelegate* delegate,
     WindowManagerDelegate* window_manager_delegate,
-    mojo::InterfaceRequest<ui::mojom::WindowTreeClient> request)
+    mojo::InterfaceRequest<ui::mojom::WindowTreeClient> request,
+    scoped_refptr<base::SingleThreadTaskRunner> io_task_runner)
     : connector_(connector),
       client_id_(0),
       next_window_id_(1),
       next_change_id_(1),
       delegate_(delegate),
       window_manager_delegate_(window_manager_delegate),
       binding_(this),
       tree_(nullptr),
       in_destructor_(false),
       weak_factory_(this) {
   // Allow for a null request in tests.
   if (request.is_pending())
     binding_.Bind(std::move(request));
   client::GetTransientWindowClient()->AddObserver(this);
   if (window_manager_delegate)
     window_manager_delegate->SetWindowManagerClient(this);
+  if (connector) {  // |connector| can be null in tests.
+    gpu_ = ui::Gpu::Create(connector, std::move(io_task_runner));
+    compositor_context_factory_ =
+        base::MakeUnique<MusContextFactory>(gpu_.get());
+    Env::GetInstance()->set_context_factory(compositor_context_factory_.get());
+  }
 }
 
 WindowTreeClient::~WindowTreeClient() {
   in_destructor_ = true;
 
   for (WindowTreeClientObserver& observer : observers_)
     observer.OnWillDestroyClient(this);
 
   std::vector<Window*> non_owned;
   WindowTracker tracker;
@@ skipping 1540 matching lines @@
   return ScheduleInFlightChange(base::MakeUnique<InFlightCaptureChange>(
       this, capture_synchronizer_.get(), window));
 }
 
 uint32_t WindowTreeClient::CreateChangeIdForFocus(WindowMus* window) {
   return ScheduleInFlightChange(base::MakeUnique<InFlightFocusChange>(
       this, focus_synchronizer_.get(), window));
 }
 
 }  // namespace aura