[Ash] Remove HoverHighlightView::hover()

ash/common/system/chromeos/network/vpn_list_view.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/common/system/chromeos/network/vpn_list_view.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
@@ skipping 241 matching lines @@
   Shell::Get()->vpn_list()->RemoveObserver(this);
 }
 
 void VPNListView::Update() {
   // Before updating the list, determine whether the user was hovering over one
   // of the VPN provider or network entries.
   std::unique_ptr<VPNProvider> hovered_provider;
   std::string hovered_network_guid;
   for (const std::pair<const views::View* const, VPNProvider>& provider :
        provider_view_map_) {
-    if (static_cast<const HoverHighlightView*>(provider.first)->hover()) {
+    if (provider.first->IsMouseHovered()) {
       hovered_provider.reset(new VPNProvider(provider.second));
       break;
     }
   }
   if (!hovered_provider) {
     for (const std::pair<const views::View*, std::string>& entry :
          network_view_guid_map_) {
-      if (static_cast<const HoverHighlightView*>(entry.first)->hover()) {
+      if (entry.first->IsMouseHovered()) {
         hovered_network_guid = entry.second;
         break;
       }
     }
   }
 
   // Clear the list.
   container()->RemoveAllChildViews(true);
   provider_view_map_.clear();
   network_view_guid_map_.clear();
@@ skipping 132 matching lines @@
     }
   }
 
   // Add providers without any configured networks, in the order that the
   // providers were returned by the extensions system.
   for (const VPNProvider& provider : providers)
     AddProviderAndNetworks(provider, networks);
 }
 
 }  // namespace ash