ash: Add some UMA for touch-events.

ash/shell_delegate.h

 // 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.
 
 #ifndef ASH_SHELL_DELEGATE_H_
 #define ASH_SHELL_DELEGATE_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
@@ skipping 24 matching lines @@
 class SystemTray;
 class SystemTrayDelegate;
 class UserWallpaperDelegate;
 
 enum UserMetricsAction {
   UMA_ACCEL_PREVWINDOW_TAB,
   UMA_ACCEL_NEXTWINDOW_TAB,
   UMA_ACCEL_PREVWINDOW_F5,
   UMA_ACCEL_NEXTWINDOW_F5,
   UMA_ACCEL_NEWTAB_T,
-  UMA_ACCEL_SEARCH_LWIN
+  UMA_ACCEL_SEARCH_LWIN,
+  UMA_TOUCHPAD_TAP_DOWN,
+  UMA_TOUCHSCREEN_TAP_DOWN,
 };
 
 // Delegate of the Shell.
 class ASH_EXPORT ShellDelegate {
  public:
   // The Shell owns the delegate.
   virtual ~ShellDelegate() {}
 
   // Returns true if user has logged in.
   virtual bool IsUserLoggedIn() = 0;
@@ skipping 75 matching lines @@
   // Opens the feedback page for "Report Issue".
   virtual void OpenFeedbackPage() = 0;
 
   // Records that the user performed an action.
   virtual void RecordUserMetricsAction(UserMetricsAction action) = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_