chromeos: changes how DisplayManagerObservers are notified

ui/aura/test/mus/test_window_manager_client.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/aura/test/mus/test_window_manager_client.h"
 
 namespace aura {
 
 TestWindowManagerClient::TestWindowManagerClient() {}
 
@@ skipping 26 matching lines @@
 
 void TestWindowManagerClient::RemoveAccelerator(uint32_t id) {}
 
 void TestWindowManagerClient::SetDisplayRoot(
     const display::Display& display,
     ui::mojom::WmViewportMetricsPtr viewport_metrics,
     bool is_primary_display,
     Id window_id,
     const SetDisplayRootCallback& callback) {}
 
+void TestWindowManagerClient::SetDisplayConfiguration(
+    const std::vector<display::Display>& displays,
+    std::vector<::ui::mojom::WmViewportMetricsPtr> viewport_metrics,
+    int64_t primary_display_id,
+    const SetDisplayConfigurationCallback& callback) {}
+
 void TestWindowManagerClient::WmResponse(uint32_t change_id, bool response) {}
 
 void TestWindowManagerClient::WmSetBoundsResponse(uint32_t change_id) {}
 
 void TestWindowManagerClient::WmRequestClose(Id transport_window_id) {}
 
 void TestWindowManagerClient::WmSetFrameDecorationValues(
     ui::mojom::FrameDecorationValuesPtr values) {}
 
 void TestWindowManagerClient::WmSetNonClientCursor(uint32_t window_id,
@@ skipping 12 matching lines @@
 void TestWindowManagerClient::OnWmCreatedTopLevelWindow(
     uint32_t change_id,
     Id transport_window_id) {}
 
 void TestWindowManagerClient::OnAcceleratorAck(
     uint32_t event_id,
     ui::mojom::EventResult result,
     const std::unordered_map<std::string, std::vector<uint8_t>>& properties) {}
 
 }  // namespace aura