Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

services/window_manager/view_targeter.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_WINDOW_MANAGER_VIEW_TARGETER_H_
 #define SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
 
+#include "ui/events/event.h"
 #include "ui/events/event_targeter.h"
 
 namespace window_manager {
 
 class ViewTarget;
 
 class ViewTargeter : public ui::EventTargeter {
  public:
   ViewTargeter();
   ~ViewTargeter() override;
 
  protected:
   // ui::EventTargeter:
   ui::EventTarget* FindTargetForEvent(ui::EventTarget* root,
                                       ui::Event* event) override;
+  ui::EventTarget* FindNextBestTarget(ui::EventTarget* previous_target,
+                                      ui::Event* event) override;
+
   ui::EventTarget* FindTargetForLocatedEvent(ui::EventTarget* root,
-                                             ui::LocatedEvent* event) override;
+                                             ui::LocatedEvent* event);
+  bool SubtreeShouldBeExploredForEvent(ui::EventTarget* target,
+                                       const ui::LocatedEvent& event);
   bool SubtreeCanAcceptEvent(ui::EventTarget* target,
-                             const ui::LocatedEvent& event) const override;
+                             const ui::LocatedEvent& event) const;
   bool EventLocationInsideBounds(ui::EventTarget* target,
-                                 const ui::LocatedEvent& event) const override;
+                                 const ui::LocatedEvent& event) const;
 
  private:
   // Targets either the root View or the currently focused view.
   ViewTarget* FindTargetForKeyEvent(ViewTarget* view, const ui::KeyEvent& key);
 
   // Deals with cases where the |root_view| needs to change how things are
   // dispatched. (For example, in the case of capture.)
   ViewTarget* FindTargetInRootView(ViewTarget* root_view,
                                    const ui::LocatedEvent& event);
 
   DISALLOW_COPY_AND_ASSIGN(ViewTargeter);
 };
 
 }  // namespace window_manager
 
 #endif  // SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_