Make spacing between uber tray items consistent with UI spec.

ash/system/tray/system_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/system/tray/system_tray.h"
 
 #include "ash/shell.h"
 #include "ash/shell/panel_window.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/audio/tray_volume.h"
@@ skipping 36 matching lines @@
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/view.h"
 
 namespace {
 
 // Adjust the size of SystemTrayContainer with additional padding.
 const int kTrayContainerVerticalPaddingBottomAlignment  = 1;
 const int kTrayContainerHorizontalPaddingBottomAlignment  = 1;
 const int kTrayContainerVerticalPaddingVerticalAlignment  = 1;
-const int kTrayContainerHorizontalPaddingVerticalAlignment = 2;
+const int kTrayContainerHorizontalPaddingVerticalAlignment = 1;
 
 }  // namespace
 
 namespace ash {
 
 namespace internal {
 
 // Container for all the items in the tray. The container auto-resizes the
 // widget when necessary.
 class SystemTrayContainer : public views::View {
@@ skipping 510 matching lines @@
 
 void SystemTray::OnPaintFocusBorder(gfx::Canvas* canvas) {
   // The tray itself expands to the right and bottom edge of the screen to make
   // sure clicking on the edges brings up the popup. However, the focus border
   // should be only around the container.
   if (GetWidget() && GetWidget()->IsActive())
     canvas->DrawFocusRect(tray_container_->bounds());
 }
 
 }  // namespace ash