Fix shelf alignment and auto-hide initialization.

ash/test/test_shell_delegate.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/test/test_shell_delegate.h"
 
 #include <limits>
 
 #include "ash/common/default_accessibility_delegate.h"
 #include "ash/common/gpu_support_stub.h"
@@ skipping 57 matching lines @@
   num_exit_requests_++;
 }
 
 keyboard::KeyboardUI* TestShellDelegate::CreateKeyboardUI() {
   return new TestKeyboardUI;
 }
 
 void TestShellDelegate::OpenUrlFromArc(const GURL& url) {}
 
 ShelfDelegate* TestShellDelegate::CreateShelfDelegate(ShelfModel* model) {
-  return new TestShelfDelegate(model);
+  return new TestShelfDelegate();
 }
 
 SystemTrayDelegate* TestShellDelegate::CreateSystemTrayDelegate() {
   return new TestSystemTrayDelegate;
 }
 
 std::unique_ptr<WallpaperDelegate>
 TestShellDelegate::CreateWallpaperDelegate() {
   return base::MakeUnique<TestWallpaperDelegate>();
 }
@@ skipping 36 matching lines @@
 void TestShellDelegate::SetTouchscreenEnabledInPrefs(bool enabled,
                                                      bool use_local_state) {
   if (use_local_state)
     touchscreen_enabled_in_local_pref_ = enabled;
 }
 
 void TestShellDelegate::UpdateTouchscreenStatusFromPrefs() {}
 
 }  // namespace test
 }  // namespace ash