Removes |old| parameter from OnWindowPropertyChanged()

ash/wm/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/wm/aura/wm_window_aura.h"
 
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf_util.h"
 #include "ash/wm/aura/aura_layout_manager_adapter.h"
 #include "ash/wm/aura/wm_globals_aura.h"
@@ skipping 514 matching lines @@
 
 void WmWindowAura::OnWindowPropertyChanged(aura::Window* window,
                                            const void* key,
                                            intptr_t old) {
   if (key == aura::client::kShowStateKey) {
     ash::wm::GetWindowState(window_)->OnWindowShowStateChanged();
     return;
   }
   WmWindowProperty wm_property;
   if (key == kSnapChildrenToPixelBoundary) {
     wm_property = WmWindowProperty::SNAP_CHILDREN_TO_PIXEL_BOUDARY;

[James Cook, 2016/05/19 23:08:23]

not for this CL, but at some point BOUDARY -> BOUNDARY

   } else if (key == aura::client::kAlwaysOnTopKey) {
     wm_property = WmWindowProperty::ALWAYS_ON_TOP;
   } else if (key == kShelfID) {
     wm_property = WmWindowProperty::SHELF_ID;
   } else {
     return;
   }
   FOR_EACH_OBSERVER(WmWindowObserver, observers_,
-                    OnWindowPropertyChanged(this, wm_property, old));
+                    OnWindowPropertyChanged(this, wm_property));
 }
 
 void WmWindowAura::OnWindowBoundsChanged(aura::Window* window,
                                          const gfx::Rect& old_bounds,
                                          const gfx::Rect& new_bounds) {
   FOR_EACH_OBSERVER(WmWindowObserver, observers_,
                     OnWindowBoundsChanged(this, old_bounds, new_bounds));
 }
 
 void WmWindowAura::OnWindowDestroying(aura::Window* window) {
   FOR_EACH_OBSERVER(WmWindowObserver, observers_, OnWindowDestroying(this));
 }
 
 void WmWindowAura::OnWindowVisibilityChanging(aura::Window* window,
                                               bool visible) {
   FOR_EACH_OBSERVER(WmWindowObserver, observers_,
                     OnWindowVisibilityChanging(this, visible));
 }
 
 }  // namespace wm
 }  // namespace ash