mash: Migrate ShelfTooltipManager to wm common types.

ash/aura/wm_window_aura.cc

 // Copyright 2016 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/aura/wm_window_aura.h"
 
 #include "ash/aura/aura_layout_manager_adapter.h"
 #include "ash/aura/wm_root_window_controller_aura.h"
 #include "ash/aura/wm_shell_aura.h"
 #include "ash/common/ash_constants.h"
@@ skipping 644 matching lines @@
 }
 
 void WmWindowAura::RemoveObserver(WmWindowObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 bool WmWindowAura::HasObserver(const WmWindowObserver* observer) const {
   return observers_.HasObserver(observer);
 }
 
+void WmWindowAura::AddLimitedPreTargetHandler(ui::EventHandler* handler) {
+  window_->AddPreTargetHandler(handler);

[sky, 2016/07/26 13:25:20]

This will give different semantics than the mus side, but as long there are no
child windows it shouldn't matter. Maybe a comment here?

[msw, 2016/07/26 17:43:25]

Added a vague comment, let me know if you have something better in mind.

+}
+
+void WmWindowAura::RemoveLimitedPreTargetHandler(ui::EventHandler* handler) {
+  window_->RemovePreTargetHandler(handler);
+}
+
 void WmWindowAura::OnWindowHierarchyChanging(
     const HierarchyChangeParams& params) {
   WmWindowObserver::TreeChangeParams wm_params;
   wm_params.target = Get(params.target);
   wm_params.new_parent = Get(params.new_parent);
   wm_params.old_parent = Get(params.old_parent);
   FOR_EACH_OBSERVER(WmWindowObserver, observers_,
                     OnWindowTreeChanging(this, wm_params));
 }
 
@@ skipping 62 matching lines @@
                                              bool visible) {
   FOR_EACH_OBSERVER(WmWindowObserver, observers_,
                     OnWindowVisibilityChanged(this, visible));
 }
 
 void WmWindowAura::OnWindowTitleChanged(aura::Window* window) {
   FOR_EACH_OBSERVER(WmWindowObserver, observers_, OnWindowTitleChanged(this));
 }
 
 }  // namespace ash