Mojo C++ bindings: remove some usage of AssociatedGroup from user code.

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>
@@ skipping 450 matching lines @@
   tree_ptr_ = std::move(window_tree_ptr);
   WindowTreeConnectionEstablished(tree_ptr_.get());
   tree_ptr_->GetCursorLocationMemory(
       base::Bind(&WindowTreeClient::OnReceivedCursorLocationMemory,
                  weak_factory_.GetWeakPtr()));
 
   tree_ptr_.set_connection_error_handler(base::Bind(
       &WindowTreeClient::OnConnectionLost, weak_factory_.GetWeakPtr()));
 
   if (window_manager_delegate_) {
-    tree_ptr_->GetWindowManagerClient(MakeRequest(
-        &window_manager_internal_client_, tree_ptr_.associated_group()));
+    tree_ptr_->GetWindowManagerClient(
+        MakeRequest(&window_manager_internal_client_));
   }
 }
 
 void WindowTreeClient::WindowTreeConnectionEstablished(
     ui::mojom::WindowTree* window_tree) {
   tree_ = window_tree;
 
   drag_drop_controller_ = base::MakeUnique<DragDropControllerMus>(this, tree_);
   capture_synchronizer_ = base::MakeUnique<CaptureSynchronizer>(this, tree_);
   focus_synchronizer_ = base::MakeUnique<FocusSynchronizer>(this, tree_);
@@ skipping 367 matching lines @@
                                ui::mojom::WindowTreePtr tree,
                                int64_t display_id,
                                Id focused_window_id,
                                bool drawn) {
   DCHECK(!tree_ptr_);
   tree_ptr_ = std::move(tree);
 
   is_from_embed_ = true;
 
   if (window_manager_delegate_) {
-    tree_ptr_->GetWindowManagerClient(MakeRequest(
-        &window_manager_internal_client_, tree_ptr_.associated_group()));
+    tree_ptr_->GetWindowManagerClient(
+        MakeRequest(&window_manager_internal_client_));
   }
 
   OnEmbedImpl(tree_ptr_.get(), client_id, std::move(root_data), display_id,
               focused_window_id, drawn);
 }
 
 void WindowTreeClient::OnEmbeddedAppDisconnected(Id window_id) {
   WindowMus* window = GetWindowByServerId(window_id);
   if (window)
     window->NotifyEmbeddedAppDisconnected();
@@ skipping 968 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