chromeos: Add UMA stats for launcher and app list.

chrome/browser/ui/views/ash/chrome_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 "chrome/browser/ui/views/ash/chrome_shell_delegate.h"
 
 #include "ash/launcher/launcher_types.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/wm/window_util.h"
 #include "base/command_line.h"
@@ skipping 335 matching lines @@
       break;
     case ash::UMA_ACCEL_SEARCH_LWIN:
       content::RecordAction(content::UserMetricsAction("Accel_Search_LWin"));
       break;
     case ash::UMA_MOUSE_DOWN:
       content::RecordAction(content::UserMetricsAction("Mouse_Down"));
       break;
     case ash::UMA_TOUCHSCREEN_TAP_DOWN:
       content::RecordAction(content::UserMetricsAction("Touchscreen_Down"));
       break;
+    case ash::UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON:
+      content::RecordAction(
+          content::UserMetricsAction("Launcher_ClickOnApplistButton"));
+      break;
+    case ash::UMA_LAUNCHER_CLICK_ON_APP:
+      content::RecordAction(content::UserMetricsAction("Launcher_ClickOnApp"));
+      break;
   }
 }
 
 void ChromeShellDelegate::Observe(int type,
                                   const content::NotificationSource& source,
                                   const content::NotificationDetails& details) {
 #if defined(OS_CHROMEOS)
   switch (type) {
     case chrome::NOTIFICATION_LOGIN_USER_PROFILE_PREPARED:
       ash::Shell::GetInstance()->CreateLauncher();
       break;
     case chrome::NOTIFICATION_SESSION_STARTED:
       ash::Shell::GetInstance()->ShowLauncher();
       break;
     default:
       NOTREACHED() << "Unexpected notification " << type;
   }
 #else
   // MSVC++ warns about switch statements without any cases.
   NOTREACHED() << "Unexpected notification " << type;
 #endif
 }