Adds couple of functions to WindowManagerDelegate:

ui/aura/test/aura_test_base.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 "ui/aura/test/aura_test_base.h"
 
 #include "ui/aura/client/window_parenting_client.h"
 #include "ui/aura/mus/property_utils.h"
 #include "ui/aura/mus/window_tree_client.h"
 #include "ui/aura/mus/window_tree_host_mus.h"
@@ skipping 160 matching lines @@
   Window* window = new Window(nullptr);
   SetWindowType(window, window_type);
   window->Init(ui::LAYER_NOT_DRAWN);
   return window;
 }
 
 void AuraTestBase::OnWmClientJankinessChanged(
     const std::set<Window*>& client_windows,
     bool janky) {}
 
+void AuraTestBase::OnWmWillCreateDisplay(const display::Display& display) {}
+
 void AuraTestBase::OnWmNewDisplay(
     std::unique_ptr<WindowTreeHostMus> window_tree_host,
     const display::Display& display) {
   // Take ownership of the WindowTreeHost.
   window_tree_host_mus_ = std::move(window_tree_host);
 }
 
 void AuraTestBase::OnWmDisplayRemoved(WindowTreeHostMus* window_tree_host) {
   if (window_tree_host_mus_.get() == window_tree_host)
     window_tree_host_mus_.reset();
 }
 
 void AuraTestBase::OnWmDisplayModified(const display::Display& display) {}
 
 ui::mojom::EventResult AuraTestBase::OnAccelerator(uint32_t id,
                                                    const ui::Event& event) {
   return ui::mojom::EventResult::HANDLED;
 }
 
 void AuraTestBase::OnWmPerformMoveLoop(
     Window* window,
     ui::mojom::MoveLoopSource source,
     const gfx::Point& cursor_location,
     const base::Callback<void(bool)>& on_done) {}
 
 void AuraTestBase::OnWmCancelMoveLoop(Window* window) {}
 
+void AuraTestBase::OnWmSetClientArea(
+    Window* window,
+    const gfx::Insets& insets,
+    const std::vector<gfx::Rect>& additional_client_areas) {}
+
 client::CaptureClient* AuraTestBase::GetCaptureClient() {
   return helper_->capture_client();
 }
 
 PropertyConverter* AuraTestBase::GetPropertyConverter() {
   return &property_converter_;
 }
 
 AuraTestBaseWithType::AuraTestBaseWithType() {}
 
 AuraTestBaseWithType::~AuraTestBaseWithType() {
   DCHECK(setup_called_);
 }
 
 void AuraTestBaseWithType::SetUp() {
   DCHECK(!setup_called_);
   setup_called_ = true;
   ConfigureBackend(GetParam());
   AuraTestBase::SetUp();
 }
 
 }  // namespace test
 }  // namespace aura