Remove "Alternate frame caption button style" command line flag

ash/metrics/user_metrics_recorder.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/metrics/user_metrics_recorder.h"
 
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_view.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
@@ skipping 339 matching lines @@
       base::RecordAction(
           base::UserMetricsAction("MaxButton_Clk_Restore"));
       break;
     case ash::UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_MAXIMIZE:
       base::RecordAction(
           base::UserMetricsAction("MaxButton_Clk_Maximize"));
       break;
     case ash::UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_MINIMIZE:
       base::RecordAction(base::UserMetricsAction("MinButton_Clk"));
       break;
-    case ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE:
-      base::RecordAction(base::UserMetricsAction("MaxButton_Maximize"));
-      break;
     case ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_LEFT:
       base::RecordAction(base::UserMetricsAction("MaxButton_MaxLeft"));
       break;
     case ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_RIGHT:
       base::RecordAction(base::UserMetricsAction("MaxButton_MaxRight"));
       break;
-    case ash::UMA_WINDOW_MAXIMIZE_BUTTON_MINIMIZE:
-      base::RecordAction(base::UserMetricsAction("MaxButton_Minimize"));
-      break;
-    case ash::UMA_WINDOW_MAXIMIZE_BUTTON_RESTORE:
-      base::RecordAction(base::UserMetricsAction("MaxButton_Restore"));
-      break;
-    case ash::UMA_WINDOW_MAXIMIZE_BUTTON_SHOW_BUBBLE:
-      base::RecordAction(base::UserMetricsAction("MaxButton_ShowBubble"));
-      break;
     case ash::UMA_WINDOW_OVERVIEW:
       base::RecordAction(
           base::UserMetricsAction("WindowSelector_Overview"));
       break;
     case ash::UMA_WINDOW_SELECTION:
       base::RecordAction(
           base::UserMetricsAction("WindowSelector_Selection"));
       break;
   }
 }
@@ skipping 45 matching lines @@
         active_window_state_type = ACTIVE_WINDOW_STATE_TYPE_OTHER;
         break;
     }
   }
   UMA_HISTOGRAM_ENUMERATION("Ash.ActiveWindowShowTypeOverTime",
                             active_window_state_type,
                             ACTIVE_WINDOW_STATE_TYPE_COUNT);
 }
 
 }  // namespace ash