ash:Shelf - Added UMA stats for ShelfAlignment

ash/shelf/shelf_alignment_menu.cc

 // Copyright 2013 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/shelf/shelf_alignment_menu.h"
 
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_types.h"
 #include "ash/shell.h"
+#include "ash/shell_delegate.h"
 #include "grit/ash_strings.h"
 #include "ui/aura/window.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace ash {
 
 ShelfAlignmentMenu::ShelfAlignmentMenu(aura::Window* root)
     : ui::SimpleMenuModel(NULL),
       root_window_(root) {
   DCHECK(root_window_);
@@ skipping 27 matching lines @@
 
 bool ShelfAlignmentMenu::GetAcceleratorForCommandId(
     int command_id,
     ui::Accelerator* accelerator) {
   return false;
 }
 
 void ShelfAlignmentMenu::ExecuteCommand(int command_id, int event_flags) {
   switch (static_cast<MenuItem>(command_id)) {
     case MENU_ALIGN_LEFT:
+      Shell::GetInstance()->delegate()->RecordUserMetricsAction(
+          UMA_SHELF_ALIGNMENT_SET_LEFT);
       Shell::GetInstance()->SetShelfAlignment(SHELF_ALIGNMENT_LEFT,
                                               root_window_);
       break;
     case MENU_ALIGN_BOTTOM:
+      Shell::GetInstance()->delegate()->RecordUserMetricsAction(
+          UMA_SHELF_ALIGNMENT_SET_BOTTOM);
       Shell::GetInstance()->SetShelfAlignment(SHELF_ALIGNMENT_BOTTOM,
                                               root_window_);
       break;
     case MENU_ALIGN_RIGHT:
+      Shell::GetInstance()->delegate()->RecordUserMetricsAction(
+          UMA_SHELF_ALIGNMENT_SET_RIGHT);
       Shell::GetInstance()->SetShelfAlignment(SHELF_ALIGNMENT_RIGHT,
                                               root_window_);
       break;
   }
 }
 
 }  // namespace ash