ash:Shelf - Added UMA stats for ShelfAlignment

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 <string>
 
 #include "ash/ash_export.h"
@@ skipping 56 matching lines @@
   UMA_ACCEL_EXIT_FIRST_Q,
   UMA_ACCEL_EXIT_SECOND_Q,
   UMA_ACCEL_SEARCH_LWIN,
   UMA_ACCEL_SHUT_DOWN_POWER_BUTTON,
   UMA_CLOSE_THROUGH_CONTEXT_MENU,
   UMA_GESTURE_OVERVIEW,
   UMA_LAUNCHER_CLICK_ON_APP,
   UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON,
   UMA_MINIMIZE_PER_KEY,
   UMA_MOUSE_DOWN,
+  UMA_SHELF_ALIGNMENT_SET_BOTTOM,
+  UMA_SHELF_ALIGNMENT_SET_LEFT,
+  UMA_SHELF_ALIGNMENT_SET_RIGHT,
   UMA_TOGGLE_MAXIMIZE_CAPTION_CLICK,
   UMA_TOGGLE_MAXIMIZE_CAPTION_GESTURE,
   UMA_TOUCHPAD_GESTURE_OVERVIEW,
   UMA_TOUCHSCREEN_TAP_DOWN,
   UMA_TRAY_HELP,
   UMA_TRAY_LOCK_SCREEN,
   UMA_TRAY_SHUT_DOWN,
   UMA_WINDOW_APP_CLOSE_BUTTON_CLICK,
   UMA_WINDOW_CLOSE_BUTTON_CLICK,
   UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_EXIT_FULLSCREEN,
@@ skipping 98 matching lines @@
   // value.
   virtual RootWindowHostFactory* CreateRootWindowHostFactory() = 0;
 
   // Get the product name.
   virtual base::string16 GetProductName() const = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_