mus: Add PointerWatcher for passively observing mouse and touch events

components/mus/public/cpp/tests/window_server_test_base.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 "components/mus/public/cpp/tests/window_server_test_base.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/test/test_timeouts.h"
@@ skipping 69 matching lines @@
   most_recent_connection_ = root->connection();
   EXPECT_TRUE(QuitRunLoop());
   ASSERT_TRUE(window_manager_client_);
   window_manager_client_->AddActivationParent(root);
 }
 
 void WindowServerTestBase::OnConnectionLost(WindowTreeConnection* connection) {
   window_tree_connection_destroyed_ = true;
 }
 
+void WindowServerTestBase::OnEventObserved(const ui::Event& event) {}
+
 void WindowServerTestBase::SetWindowManagerClient(WindowManagerClient* client) {
   window_manager_client_ = client;
 }
 
 bool WindowServerTestBase::OnWmSetBounds(Window* window, gfx::Rect* bounds) {
   return window_manager_delegate_
              ? window_manager_delegate_->OnWmSetBounds(window, bounds)
              : true;
 }
 
@@ skipping 20 matching lines @@
 
 void WindowServerTestBase::Create(
     shell::Connection* connection,
     mojo::InterfaceRequest<mojom::WindowTreeClient> request) {
   WindowTreeConnection::Create(
       this, std::move(request),
       WindowTreeConnection::CreateType::DONT_WAIT_FOR_EMBED);
 }
 
 }  // namespace mus