experiment with -Wimplicit-fallthrough

webkit/browser/fileapi/sandbox_origin_database.cc

 // 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.
 
 #include "webkit/browser/fileapi/sandbox_origin_database.h"
 
 #include <set>
 #include <utility>
 
 #include "base/file_util.h"
@@ skipping 89 matching lines @@
       LOG(WARNING) << "Attempting to repair SandboxOriginDatabase.";
 
       if (RepairDatabase(path)) {
         UMA_HISTOGRAM_ENUMERATION(kDatabaseRepairHistogramLabel,
                                   DB_REPAIR_SUCCEEDED, DB_REPAIR_MAX);
         LOG(WARNING) << "Repairing SandboxOriginDatabase completed.";
         return true;
       }
       UMA_HISTOGRAM_ENUMERATION(kDatabaseRepairHistogramLabel,
                                 DB_REPAIR_FAILED, DB_REPAIR_MAX);
-      // fall through
+      FALLTHROUGH_INTENDED;
     case DELETE_ON_CORRUPTION:
       if (!base::DeleteFile(file_system_directory_, true))
         return false;
       if (!base::CreateDirectory(file_system_directory_))
         return false;
       return Init(init_option, FAIL_ON_CORRUPTION);
   }
   NOTREACHED();
   return false;
 }
@@ skipping 211 matching lines @@
       db_->Put(leveldb::WriteOptions(), LastPathKey(), std::string("-1"));
   if (!status.ok()) {
     HandleError(FROM_HERE, status);
     return false;
   }
   *number = -1;
   return true;
 }
 
 }  // namespace fileapi