Remove unused ash::SHELF_ALIGNMENT_TOP

ash/system/date/tray_date.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/system/date/tray_date.h"
 
 #include "ash/shell.h"
 #include "ash/system/date/date_default_view.h"
 #include "ash/system/date/date_view.h"
 #include "ash/system/tray/system_tray.h"
@@ skipping 35 matching lines @@
   return default_view_;
 }
 
 views::View* TrayDate::CreateDefaultViewForTesting(user::LoginStatus status) {
   return CreateDefaultView(status);
 }
 
 views::View* TrayDate::CreateTrayView(user::LoginStatus status) {
   CHECK(time_tray_ == NULL);
   ClockLayout clock_layout =
-      (system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM ||
-       system_tray()->shelf_alignment() == SHELF_ALIGNMENT_TOP) ?
-          HORIZONTAL_CLOCK : VERTICAL_CLOCK;
+      system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM
+          ? HORIZONTAL_CLOCK
+          : VERTICAL_CLOCK;
   time_tray_ = new tray::TimeView(clock_layout);
   views::View* view = new TrayItemView(this);
   view->AddChildView(time_tray_);
   return view;
 }
 
 views::View* TrayDate::CreateDefaultView(user::LoginStatus status) {
   default_view_ = new DateDefaultView(status);
 
 #if defined(OS_CHROMEOS)
@@ skipping 18 matching lines @@
 }
 
 void TrayDate::DestroyDetailedView() {
 }
 
 void TrayDate::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 }
 
 void TrayDate::UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) {
   if (time_tray_) {
-    ClockLayout clock_layout = (alignment == SHELF_ALIGNMENT_BOTTOM ||
-        alignment == SHELF_ALIGNMENT_TOP) ?
-            HORIZONTAL_CLOCK : VERTICAL_CLOCK;
+    ClockLayout clock_layout =
+        alignment == SHELF_ALIGNMENT_BOTTOM ? HORIZONTAL_CLOCK : VERTICAL_CLOCK;
     time_tray_->UpdateClockLayout(clock_layout);
   }
 }
 
 void TrayDate::OnDateFormatChanged() {
   if (time_tray_)
     time_tray_->UpdateTimeFormat();
   if (default_view_)
     default_view_->GetDateView()->UpdateTimeFormat();
 }
@@ skipping 13 matching lines @@
         can_set_time ? TrayDate::SET_SYSTEM_TIME : TrayDate::NONE);
   }
 }
 
 void TrayDate::Refresh() {
   if (time_tray_)
     time_tray_->UpdateText();
 }
 
 }  // namespace ash