[fsp] Decouple file_service_provider::Service.

chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc

Index: chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc
diff --git a/chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc b/chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc
index bf9b27ee18dfd9bc0c77321eac10a28fa5afea6c..d19bb84f87a5bd243c5ad7447690b4a46c9a6edb 100644
--- a/chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc
+++ b/chrome/browser/chromeos/extensions/file_manager/private_api_mount.cc
@@ -128,8 +128,10 @@ bool FileBrowserPrivateRemoveMountFunction::RunImpl() {
           chromeos::file_system_provider::Service::Get(GetProfile());
       DCHECK(service);
       // TODO(mtomasz): Pass a more detailed error than just a bool.
-      if (!service->RequestUnmount(volume_info.file_system_id))
+      if (!service->RequestUnmount(extension_->id(),
+                                   volume_info.file_system_id)) {
         return false;
+      }
       break;
     }
     default: