Added quota client for serviceworker. Enables 'clear past <time> data'.

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index 531e63824285d7c3878c61c71388d1867520758f..1e262553c703d7a880710e853456630b1721cada 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -233,7 +233,8 @@ int StoragePartitionImpl::GenerateQuotaClientMask(uint32 remove_mask) {
     quota_client_mask |= storage::QuotaClient::kAppcache;
   if (remove_mask & StoragePartition::REMOVE_DATA_MASK_INDEXEDDB)
     quota_client_mask |= storage::QuotaClient::kIndexedDatabase;
-  // TODO(jsbell): StoragePartition::REMOVE_DATA_MASK_SERVICE_WORKERS)
+  if (remove_mask & StoragePartition::REMOVE_DATA_MASK_SERVICE_WORKERS)
+    quota_client_mask |= storage::QuotaClient::kServiceWorker;
 
   return quota_client_mask;
 }