[cros] RlzValueStore made protected by a cross-process lock and not persisted over browser lifetime…

base/files/important_file_writer.h

Index: base/files/important_file_writer.h
diff --git a/base/files/important_file_writer.h b/base/files/important_file_writer.h
index ae814d5e1b36fc99e703e05405a94363fc13984e..50d8bf5317718040dbbe4a8eb9b9a40f64ad6ab1 100644
--- a/base/files/important_file_writer.h
+++ b/base/files/important_file_writer.h
@@ -51,6 +51,9 @@ class BASE_EXPORT ImportantFileWriter : public NonThreadSafe {
     virtual ~DataSerializer() {}
   };
 
+  // Save |data| to |path|. Blocks and writes data on the current thread.

[Mattias Nissler (ping if slow), 2012/11/26 15:48:57]

Should mention that this uses save-to-tempfile-and-rename, so it's clear what is
different from file_util::WriteFile. You might also want to update the name to
something better. Maybe WriteFileAtomically? That's just from the top of my
head, feel free to come up with a better name.

[Ivan Korotkov, 2012/11/27 11:37:25]

WriteFileAtomically sounds good enough to me.

+  static bool WriteToDisk(const FilePath& path, const std::string& data);
+
   // Initialize the writer.
   // |path| is the name of file to write.
   // |task_runner| is the SequencedTaskRunner instance where on which we will