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

ash/mus/window_manager.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 "ash/mus/window_manager.h"
 
 #include <stdint.h>
 
 #include <utility>
 
@@ skipping 202 matching lines @@
   shell_.reset();
   shadow_controller_.reset();
 
   FOR_EACH_OBSERVER(WindowManagerObserver, observers_,
                     OnWindowTreeClientDestroyed());
 
   window_tree_client_ = nullptr;
   window_manager_client_ = nullptr;
 }
 
-void WindowManager::OnEventObserved(const ui::Event& event,
-                                    ui::Window* target) {
-  // Does not use EventObservers.
+void WindowManager::OnPointerEventObserved(const ui::PointerEvent& event,
+                                           ui::Window* target) {
+  // Does not use PointerWatchers.
 }
 
 void WindowManager::SetWindowManagerClient(ui::WindowManagerClient* client) {
   window_manager_client_ = client;
 }
 
 bool WindowManager::OnWmSetBounds(ui::Window* window, gfx::Rect* bounds) {
   // TODO(sky): this indirectly sets bounds, which is against what
   // OnWmSetBounds() recommends doing. Remove that restriction, or fix this.
   WmWindowMus::Get(window)->SetBounds(*bounds);
@@ skipping 62 matching lines @@
                                                     const ui::Event& event) {
   auto iter = accelerator_handlers_.find(GetAcceleratorNamespaceId(id));
   if (iter == accelerator_handlers_.end())
     return ui::mojom::EventResult::HANDLED;
 
   return iter->second->OnAccelerator(id, event);
 }
 
 }  // namespace mus
 }  // namespace ash