Fix folder animation in RTL

Bug: 462296
Change-Id: I14fade7b9324f869192c4131d2d41d282278d85a
Reviewed-on: https://chromium-review.googlesource.com/c/1352536Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Commit-Queue: Weidong Guo <weidongg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611812}

ash/app_list/views/app_list_folder_view.cc

@@ -577,7 +577,8 @@ void AppListFolderView::UpdatePreferredBounds() {
   // Calculate the folder icon's bounds relative to AppsContainerView.
   gfx::RectF rect(activated_folder_item_view->GetIconBounds());
   ConvertRectToTarget(activated_folder_item_view, container_view_, &rect);
-  gfx::Rect icon_bounds_in_container = gfx::ToEnclosingRect(rect);
+  gfx::Rect icon_bounds_in_container =
+      container_view_->GetMirroredRect(gfx::ToEnclosingRect(rect));
 
   // The opened folder view's center should try to overlap with the folder
   // item's center while it must fit within the bounds of AppsContainerView and

ash/app_list/views/apps_grid_view.cc

@@ -3027,7 +3027,7 @@ void AppsGridView::StartFolderDroppingAnimation(
     const gfx::Rect& source_bounds) {
   // Calculate target bounds of dragged item.
   gfx::Rect target_bounds =
-      GetTargetIconRectInFolder(drag_item, folder_item_view);
+      GetMirroredRect(GetTargetIconRectInFolder(drag_item, folder_item_view));
 
   // Update folder icon.
   AppListFolderItem* folder_item =

ash/app_list/views/top_icon_animation_view.cc

@@ -73,7 +73,7 @@ void TopIconAnimationView::TransformView() {
   // Transform used for scaling down the icon and move it back inside to the
   // original folder icon. The transform's origin is this view's origin.
   gfx::Transform transform;
-  transform.Translate(scaled_rect_.x() - bounds().x(),
+  transform.Translate(scaled_rect_.x() - GetMirroredX(),
                       scaled_rect_.y() - bounds().y());
   transform.Scale(
       static_cast<double>(scaled_rect_.width()) / bounds().width(),