Added views::ViewModelT<T>, a type-safe template version of ViewModel.

ui/app_list/views/apps_grid_view.cc

Index: ui/app_list/views/apps_grid_view.cc
diff --git a/ui/app_list/views/apps_grid_view.cc b/ui/app_list/views/apps_grid_view.cc
index 22b7fd97237393262ff49957a89cb5a1965b46b7..43628e420ae62d5fb68b2f7f69741fd894d4a345 100644
--- a/ui/app_list/views/apps_grid_view.cc
+++ b/ui/app_list/views/apps_grid_view.cc
@@ -762,7 +762,7 @@ void AppsGridView::StopPageFlipTimer() {
 }
 
 AppListItemView* AppsGridView::GetItemViewAt(int index) const {
-  return static_cast<AppListItemView*>(view_model_.view_at(index));
+  return view_model_.view_at(index);
 }
 
 void AppsGridView::SetTopItemViewsVisible(bool visible) {
@@ -1057,7 +1057,7 @@ void AppsGridView::UpdatePulsingBlockViews() {
     return;
 
   while (pulsing_blocks_model_.view_size() > desired) {
-    PulsingBlockView* view = GetPulsingBlockViewAt(0);
+    PulsingBlockView* view = pulsing_blocks_model_.view_at(0);
     pulsing_blocks_model_.Remove(0);
     delete view;
   }
@@ -1069,10 +1069,6 @@ void AppsGridView::UpdatePulsingBlockViews() {
   }
 }
 
-PulsingBlockView* AppsGridView::GetPulsingBlockViewAt(int index) const {
-  return static_cast<PulsingBlockView*>(pulsing_blocks_model_.view_at(index));
-}
-
 AppListItemView* AppsGridView::CreateViewForItemAtIndex(size_t index) {
   // The drag_view_ might be pending for deletion, therefore view_model_
   // may have one more item than item_list_.