mash: Move LauncherItemController to ash, rename ShelfItemDelegate.

ash/common/test/test_shelf_item_delegate.h

Index: ash/common/test/test_shelf_item_delegate.h
diff --git a/ash/common/test/test_shelf_item_delegate.h b/ash/common/test/test_shelf_item_delegate.h
index 4ad76f2ad1d0ef17a2bce57504a4b908f547e507..3550c7717450e0056d1329e836556669ab3a2346 100644
--- a/ash/common/test/test_shelf_item_delegate.h
+++ b/ash/common/test/test_shelf_item_delegate.h
@@ -5,7 +5,7 @@
 #ifndef ASH_COMMON_TEST_TEST_SHELF_ITEM_DELEGATE_H_
 #define ASH_COMMON_TEST_TEST_SHELF_ITEM_DELEGATE_H_
 
-#include "ash/public/interfaces/shelf.mojom.h"
+#include "ash/public/cpp/shelf_item_delegate.h"
 #include "base/macros.h"
 
 namespace ash {
@@ -15,12 +15,12 @@ class WmWindow;
 namespace test {
 
 // Test implementation of ShelfItemDelegate.
-class TestShelfItemDelegate : public mojom::ShelfItemDelegate {
+class TestShelfItemDelegate : public ShelfItemDelegate {
  public:
   explicit TestShelfItemDelegate(WmWindow* window);
   ~TestShelfItemDelegate() override;
 
-  // mojom::ShelfItemDelegate:
+  // ShelfItemDelegate:
   void ItemSelected(std::unique_ptr<ui::Event> event,
                     int64_t display_id,
                     ShelfLaunchSource source,