Remove "Alternate frame caption button style" command line flag

ash/metrics/user_metrics_recorder.cc

Index: ash/metrics/user_metrics_recorder.cc
diff --git a/ash/metrics/user_metrics_recorder.cc b/ash/metrics/user_metrics_recorder.cc
index a71271bec0fc4bd45e1bb528e8755a2d1bee017d..a44cc788504cfea753c5127e212370c7635a2a63 100644
--- a/ash/metrics/user_metrics_recorder.cc
+++ b/ash/metrics/user_metrics_recorder.cc
@@ -357,24 +357,12 @@ void UserMetricsRecorder::RecordUserMetricsAction(UserMetricsAction action) {
     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"));