WIP: Eliminate event.target() usage from TrayEventFilter

components/mus/public/cpp/tests/window_server_test_base.h

 // 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.
 
 #ifndef COMPONENTS_MUS_PUBLIC_CPP_TESTS_WINDOW_SERVER_TEST_BASE_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_TESTS_WINDOW_SERVER_TEST_BASE_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 50 matching lines @@
 
   // testing::Test:
   void SetUp() override;
 
   // WindowServerShellTestBase:
   bool AcceptConnection(shell::Connection* connection) override;
 
   // WindowTreeDelegate:
   void OnEmbed(Window* root) override;
   void OnConnectionLost(WindowTreeConnection* connection) override;
-  void OnEventObserved(const ui::Event& event) override;
+  void OnEventObserved(const ui::Event& event, Window* target) override;
 
   // WindowManagerDelegate:
   void SetWindowManagerClient(WindowManagerClient* client) override;
   bool OnWmSetBounds(Window* window, gfx::Rect* bounds) override;
   bool OnWmSetProperty(
       Window* window,
       const std::string& name,
       std::unique_ptr<std::vector<uint8_t>>* new_data) override;
   Window* OnWmCreateTopLevelWindow(
       std::map<std::string, std::vector<uint8_t>>* properties) override;
@@ skipping 21 matching lines @@
   WindowManagerClient* window_manager_client_;
 
   bool window_tree_connection_destroyed_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowServerTestBase);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_TESTS_WINDOW_SERVER_TEST_BASE_H_