Use the correct launcher assets for shelf alignment.

ash/launcher/launcher_tooltip_manager_unittest.cc

 // Copyright (c) 2012 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/launcher/launcher_tooltip_manager.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/shelf_layout_manager.h"
@@ skipping 23 matching lines @@
 class LauncherTooltipManagerTest : public AshTestBase {
  public:
   LauncherTooltipManagerTest() {}
   virtual ~LauncherTooltipManagerTest() {}
 
   virtual void SetUp() OVERRIDE {
     AshTestBase::SetUp();
     internal::RootWindowController* controller =
         Shell::GetPrimaryRootWindowController();
     tooltip_manager_.reset(new internal::LauncherTooltipManager(
-        SHELF_ALIGNMENT_BOTTOM,
         controller->shelf(),
         controller->launcher()->GetLauncherViewForTest()));
   }
 
   virtual void TearDown() OVERRIDE {
     tooltip_manager_.reset();
     AshTestBase::TearDown();
   }
 
   void ShowDelayed() {
@@ skipping 158 matching lines @@
   // Should hide if the mouse is out of the tooltip.
   test_api.set_location(tooltip_rect.origin() + gfx::Vector2d(-1, -1));
   EXPECT_EQ(ui::ER_UNHANDLED,
             event_handler->OnMouseEvent(&mouse_event));
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(TooltipIsVisible());
 }
 
 }  // namespace test
 }  // namespace ash