Added the AutomaticProfileResetter service.

base/prefs/pref_service.h

Index: base/prefs/pref_service.h
diff --git a/base/prefs/pref_service.h b/base/prefs/pref_service.h
index 8af042f40b7d86e9b22fe09908307cb871cd54c2..db9d6131e46332606ee374fbbb0aca18a0fcac5e 100644
--- a/base/prefs/pref_service.h
+++ b/base/prefs/pref_service.h
@@ -236,6 +236,11 @@ class BASE_PREFS_EXPORT PrefService : public base::NonThreadSafe {
   // is passed to the caller.
   base::DictionaryValue* GetPreferenceValues() const;
 
+  // Returns a flat dictionary with effective preference values, that is, will
+  // not split paths on '.' characters to get values into nested dictionaries.
+  // The ownership is passed to the caller.

[battre, 2013/09/25 09:43:26]

My suggestion:

Returns a dictionary with effective preference values. Contrary to
GetPreferenceValues() the paths of registered preferences are not split on '.'
characters. If a registered preference stores a dictionary, this will use the
typical nesting on '.' characters. If "foo.bar" is a registered preference, the
result could look like this: { "foo.bar": {"a": {"b": true} } }.
The ownership is passed to the caller.

[robertshield, 2013/09/25 20:18:12]

Don't have much to add other than a big +1 on providing an example in the
comment.

[engedy, 2013/09/27 23:27:34]

Done.

+  base::DictionaryValue* GetPreferenceValuesWithoutPathExpansion() const;
+
   bool ReadOnly() const;
 
   PrefInitializationStatus GetInitializationStatus() const;