FileAPI: Clean up around FileSystemBackend

webkit/browser/fileapi/obfuscated_file_util_unittest.cc

Index: webkit/browser/fileapi/obfuscated_file_util_unittest.cc
diff --git a/webkit/browser/fileapi/obfuscated_file_util_unittest.cc b/webkit/browser/fileapi/obfuscated_file_util_unittest.cc
index ae4edd02d41a94567d77952ba78b816f809dbca6..ced3d716da4c8c4727f8c8c0a7c80fe4df2a7bf3 100644
--- a/webkit/browser/fileapi/obfuscated_file_util_unittest.cc
+++ b/webkit/browser/fileapi/obfuscated_file_util_unittest.cc
@@ -142,8 +142,8 @@ class ObfuscatedFileUtilTest : public testing::Test {
 
     // Every time we create a new sandbox_file_system helper,
     // it creates another context, which creates another path manager,
-    // another sandbox_mount_point_provider, and
-    // another OFU.  We need to pass in the context to skip all that.
+    // another sandbox_backend, and another OFU.
+    // We need to pass in the context to skip all that.
     file_system_context_ = CreateFileSystemContextForTesting(
         quota_manager_->proxy(),
         data_dir_.path());