mus: Change PointerWatcher to observe all pointer events, with moves optional.

ash/mus/window_manager_unittest.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 <stdint.h>
 
 #include <memory>
 #include <utility>
 
 #include "ash/public/interfaces/user_window_controller.mojom.h"
@@ skipping 11 matching lines @@
 
 class WindowTreeClientDelegate : public ui::WindowTreeClientDelegate {
  public:
   WindowTreeClientDelegate() {}
   ~WindowTreeClientDelegate() override {}
 
  private:
   // ui::WindowTreeClientDelegate:
   void OnEmbed(ui::Window* root) override {}
   void OnDidDestroyClient(ui::WindowTreeClient* client) override {}
-  void OnEventObserved(const ui::Event& event, ui::Window* target) override {}
+  void OnPointerEventObserved(const ui::PointerEvent& event,
+                              ui::Window* target) override {}
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeClientDelegate);
 };
 
 class WindowManagerTest : public shell::test::ServiceTest {
  public:
   WindowManagerTest() : shell::test::ServiceTest("exe:mash_unittests") {}
   ~WindowManagerTest() override {}
 
  private:
@@ skipping 107 matching lines @@
   ui::Window* top_level_window = client->NewTopLevelWindow(nullptr);
   ASSERT_TRUE(top_level_window);
 
   observer.WaitUntilWindowCountReaches(1u);
   client.reset();
   observer.WaitUntilWindowCountReaches(0u);
 }
 
 }  // namespace mus
 }  // namespace ash