Move WriteFile and WriteFileDescriptor from file_util to base namespace.

content/browser/storage_partition_impl_unittest.cc

Index: content/browser/storage_partition_impl_unittest.cc
diff --git a/content/browser/storage_partition_impl_unittest.cc b/content/browser/storage_partition_impl_unittest.cc
index 9a5c35fbe11381c116a4e98dff9f667f582f1dcc..bc2dca85d940f0e913821ac815360e55a8e034a9 100644
--- a/content/browser/storage_partition_impl_unittest.cc
+++ b/content/browser/storage_partition_impl_unittest.cc
@@ -179,9 +179,9 @@ class RemoveLocalStorageTester {
     base::CreateDirectory(storage_path);
 
     // Write some files.
-    file_util::WriteFile(storage_path.Append(kDomStorageOrigin1), NULL, 0);
-    file_util::WriteFile(storage_path.Append(kDomStorageOrigin2), NULL, 0);
-    file_util::WriteFile(storage_path.Append(kDomStorageOrigin3), NULL, 0);
+    base::WriteFile(storage_path.Append(kDomStorageOrigin1), NULL, 0);
+    base::WriteFile(storage_path.Append(kDomStorageOrigin2), NULL, 0);
+    base::WriteFile(storage_path.Append(kDomStorageOrigin3), NULL, 0);
 
     // Tweak their dates.
     base::Time now = base::Time::Now();