Added Ash.SystemMenu.DefaultView.VisibleRows histogram.

ash/system/chromeos/tray_caps_lock.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/chromeos/tray_caps_lock.h"
 
 #include "ash/common/system/tray/actionable_view.h"
 #include "ash/common/system/tray/fixed_sized_image_view.h"
 #include "ash/common/system/tray/system_tray_delegate.h"
 #include "ash/common/system/tray/tray_constants.h"
@@ skipping 108 matching lines @@
     return true;
   }
 
   views::Label* text_label_;
   views::Label* shortcut_label_;
 
   DISALLOW_COPY_AND_ASSIGN(CapsLockDefaultView);
 };
 
 TrayCapsLock::TrayCapsLock(SystemTray* system_tray)
-    : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_CAPS_LOCK),
+    : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_CAPS_LOCK, UMA_CAPS_LOCK),
       default_(NULL),
       detailed_(NULL),
       caps_lock_enabled_(CapsLockIsEnabled()),
       message_shown_(false) {
   chromeos::input_method::InputMethodManager* ime =
       chromeos::input_method::InputMethodManager::Get();
   if (ime && ime->GetImeKeyboard())
     ime->GetImeKeyboard()->AddObserver(this);
 }
 
@@ skipping 69 matching lines @@
 
 void TrayCapsLock::DestroyDefaultView() {
   default_ = NULL;
 }
 
 void TrayCapsLock::DestroyDetailedView() {
   detailed_ = NULL;
 }
 
 }  // namespace ash