| Index: extensions/browser/api/extensions_api_client.cc | 
| diff --git a/extensions/browser/api/extensions_api_client.cc b/extensions/browser/api/extensions_api_client.cc | 
| index 764233d2cb66c61f129dac8475016e3900dec004..f2e27908a613dc7694199cf410543b430fa3199b 100644 | 
| --- a/extensions/browser/api/extensions_api_client.cc | 
| +++ b/extensions/browser/api/extensions_api_client.cc | 
| @@ -108,6 +108,10 @@ ExtensionsAPIClient::GetNetworkingCastPrivateDelegate() { | 
| return nullptr; | 
| } | 
|  | 
| +FileSystemDelegate* ExtensionsAPIClient::GetFileSystemDelegate() { | 
| +  return nullptr; | 
| +} | 
| + | 
| #if defined(OS_CHROMEOS) | 
| NonNativeFileSystemDelegate* | 
| ExtensionsAPIClient::GetNonNativeFileSystemDelegate() { | 
|  |