Renames aura::client::WindowTreeClient to WindowParentingClient

ash/root_window_controller.cc

 // Copyright (c) 2012 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 "ash/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/aura/aura_layout_manager_adapter.h"
@@ skipping 400 matching lines @@
       wm_shelf_aura_(new WmShelfAura),
       touch_hud_debug_(NULL),
       touch_hud_projection_(NULL) {
   aura::Window* root_window = GetRootWindow();
   GetRootWindowSettings(root_window)->controller = this;
 
   // Has to happen after this is set as |controller| of RootWindowSettings.
   wm_root_window_controller_ = WmRootWindowControllerAura::Get(root_window);
 
   stacking_controller_.reset(new StackingController);
-  aura::client::SetWindowTreeClient(root_window, stacking_controller_.get());
+  aura::client::SetWindowParentingClient(root_window,
+                                         stacking_controller_.get());
   capture_client_.reset(new ::wm::ScopedCaptureClient(root_window));
 }
 
 void RootWindowController::Init(RootWindowType root_window_type,
                                 bool first_run_after_boot) {
   aura::Window* root_window = GetRootWindow();
   Shell* shell = Shell::GetInstance();
   shell->InitRootWindow(root_window);
 
   wm_root_window_controller_->CreateContainers();
@@ skipping 128 matching lines @@
     EnableTouchHudProjection();
   else
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : nullptr;
 }
 
 }  // namespace ash