Hardcode applist icon dimension and shadows.

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 00141ffd1f19f6b96dc0ae134ab943db8a26342a..39ec88dcc9160ca16c55f4af00edf13c4fa756e8 100644
--- a/ui/app_list/views/apps_grid_view.cc
+++ b/ui/app_list/views/apps_grid_view.cc
@@ -387,8 +387,7 @@ AppsGridView::~AppsGridView() {
   RemoveAllChildViews(true);
 }
 
-void AppsGridView::SetLayout(int icon_size, int cols, int rows_per_page) {
-  icon_size_.SetSize(icon_size, icon_size);
+void AppsGridView::SetLayout(int cols, int rows_per_page) {
   cols_ = cols;
   rows_per_page_ = rows_per_page;
 
@@ -782,7 +781,6 @@ void AppsGridView::InitiateDragFromReparentItemInRootLevelGridView(
   // Note: For testing purpose, SetFillsBoundsOpaquely can be set to true to
   // show the gray background.
   drag_view_->SetFillsBoundsOpaquely(false);
-  drag_view_->SetIconSize(icon_size_);
   drag_view_->SetBoundsRect(drag_view_rect);
   drag_view_->SetDragUIState();  // Hide the title of the drag_view_.
 
@@ -1027,7 +1025,6 @@ views::View* AppsGridView::CreateViewForItemAtIndex(size_t index) {
   DCHECK_LE(index, item_list_->item_count());
   AppListItemView* view = new AppListItemView(this,
                                               item_list_->item_at(index));
-  view->SetIconSize(icon_size_);
   view->SetPaintToLayer(true);
   view->SetFillsBoundsOpaquely(false);
   return view;