UserMetricsRecorder: Add missing break statement.

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 86 matching lines @@
       base::RecordAction(
           base::UserMetricsAction("Shelf_AlignmentSetBottom"));
       break;
     case ash::UMA_SHELF_ALIGNMENT_SET_LEFT:
       base::RecordAction(
           base::UserMetricsAction("Shelf_AlignmentSetLeft"));
       break;
     case ash::UMA_SHELF_ALIGNMENT_SET_RIGHT:
       base::RecordAction(
           base::UserMetricsAction("Shelf_AlignmentSetRight"));
+      break;
     case ash::UMA_STATUS_AREA_AUDIO_CURRENT_INPUT_DEVICE:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_Audio_CurrentInputDevice"));
       break;
     case ash::UMA_STATUS_AREA_AUDIO_CURRENT_OUTPUT_DEVICE:
       base::RecordAction(
           base::UserMetricsAction("StatusArea_Audio_CurrentOutputDevice"));
       break;
     case ash::UMA_STATUS_AREA_AUDIO_SWITCH_INPUT_DEVICE:
       base::RecordAction(
@@ skipping 304 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