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

services/ui/public/cpp/window_tree_client_delegate.h

 // Copyright 2014 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 SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_
 #define SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_
 
 #include <string>
 
 #include "services/shell/public/interfaces/interface_provider.mojom.h"
@@ skipping 22 matching lines @@
   // and the connection is configured to delete when there are no roots (the
   // default), then after |root| is destroyed the connection is destroyed as
   // well.
   virtual void OnUnembed(Window* root);
 
   // Called from the destructor of WindowTreeClient after all the Windows have
   // been destroyed. |client| is no longer valid after this call.
   virtual void OnDidDestroyClient(WindowTreeClient* client) = 0;
 
   // Called when the WindowTreeClient receives an input event observed via
-  // SetEventObserver(). |target| may be null for events that were sent to
+  // StartPointerWatcher(). |target| may be null for events that were sent to
   // windows owned by other processes.
-  virtual void OnEventObserved(const ui::Event& event, Window* target) = 0;
+  virtual void OnPointerEventObserved(const ui::PointerEvent& event,
+                                      Window* target) = 0;
 
  protected:
   virtual ~WindowTreeClientDelegate() {}
 };
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_PUBLIC_CPP_WINDOW_TREE_CLIENT_DELEGATE_H_