Set status tray height to 37px on login screen

ash/common/system/web_notification/web_notification_tray.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/common/system/web_notification/web_notification_tray.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/wm_shelf.h"
@@ skipping 52 matching lines @@
 
 // Menu commands
 constexpr int kToggleQuietMode = 0;
 constexpr int kEnableQuietModeDay = 2;
 
 constexpr int kMaximumSmallIconCount = 3;
 
 constexpr gfx::Size kTrayItemInnerIconSize(16, 16);
 constexpr gfx::Size kTrayItemInnerBellIconSizeNonMd(18, 18);
 constexpr gfx::Size kTrayItemOuterSize(26, 26);
-constexpr gfx::Insets kTrayItemInsets(3, 3);
+constexpr int kTrayMainAxisInset = 3;
+constexpr int kTrayCrossAxisInset = 0;
 
 constexpr int kTrayItemAnimationDurationMS = 200;
 
 constexpr size_t kMaximumNotificationNumber = 99;
 
 // Flag to disable animation. Only for testing.
 bool disable_animations_for_test = false;
 }
 
 namespace {
@@ skipping 243 matching lines @@
   popup_alignment_delegate_.reset(new AshPopupAlignmentDelegate(shelf));
   popup_collection_.reset(new message_center::MessagePopupCollection(
       message_center(), message_center_tray_.get(),
       popup_alignment_delegate_.get()));
   const display::Display& display =
       status_area_window_->GetDisplayNearestWindow();
   popup_alignment_delegate_->StartObserving(display::Screen::GetScreen(),
                                             display);
   OnMessageCenterTrayChanged();
 
-  tray_container()->SetMargin(kTrayItemInsets);
+  tray_container()->SetMargin(kTrayMainAxisInset, kTrayCrossAxisInset);
 }
 
 WebNotificationTray::~WebNotificationTray() {
   // Release any child views that might have back pointers before ~View().
   message_center_bubble_.reset();
   popup_alignment_delegate_.reset();
   popup_collection_.reset();
 }
 
 // static
@@ skipping 318 matching lines @@
 
 message_center::MessageCenterBubble*
 WebNotificationTray::GetMessageCenterBubbleForTest() {
   if (!message_center_bubble())
     return nullptr;
   return static_cast<message_center::MessageCenterBubble*>(
       message_center_bubble()->bubble());
 }
 
 }  // namespace ash