mash: Replace int ShelfIDs with AppLaunchID strings.

ash/shelf/shelf_tooltip_manager_unittest.cc

 // Copyright 2013 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/shelf/shelf_tooltip_manager.h"
 
 #include "ash/public/cpp/config.h"
 #include "ash/shelf/app_list_button.h"
 #include "ash/shelf/shelf_model.h"
 #include "ash/shelf/shelf_view.h"
@@ skipping 67 matching lines @@
   // The manager should not show or start the timer for a non-shelf view.
   views::View view;
   tooltip_manager_->ShowTooltip(&view);
   EXPECT_FALSE(tooltip_manager_->IsVisible());
   tooltip_manager_->ShowTooltipWithDelay(&view);
   EXPECT_FALSE(IsTimerRunning());
 
   // The manager should start the timer for a view on the shelf.
   ShelfModel* model = shelf_view_->model();
   ShelfItem item;
+  item.id = ShelfID("foo");
   item.type = TYPE_PINNED_APP;
   const int index = model->Add(item);
   // Note: There's no easy way to correlate shelf a model index/id to its view.
   tooltip_manager_->ShowTooltipWithDelay(
       shelf_view_->child_at(shelf_view_->child_count() - 1));
   EXPECT_TRUE(IsTimerRunning());
 
   // Removing the view won't stop the timer, but the tooltip shouldn't be shown.
   model->RemoveItemAt(index);
   EXPECT_TRUE(IsTimerRunning());
@@ skipping 136 matching lines @@
 
   // Should not hide for key events.
   tooltip_manager_->ShowTooltip(shelf_view_->GetAppListButton());
   ASSERT_TRUE(tooltip_manager_->IsVisible());
   generator.PressKey(ui::VKEY_A, ui::EF_NONE);
   EXPECT_TRUE(tooltip_manager_->IsVisible());
 }
 
 }  // namespace test
 }  // namespace ash