Added the AutomaticProfileResetter service.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 2370fb9023def443726c57d498e639f7b67ad82b..5d8f42960b89a33177cbfc5fe3336e76ac0f3007 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1312,6 +1312,11 @@ const char kExtensionsLastChromeVersion[] = "extensions.last_chrome_version";
 // platforms.
 extern const char kFullscreenAllowed[] = "fullscreen.allowed";
 
+// String that indicates if the Profile Reset prompt has already been shown to
+// the user. Used both in user preferences and local state, in the latter, it is
+// actually a dictionary that maps profile keys to before-mentioned strings.
+const char kProfileResetPromptMemento[] = "profile.reset_prompt_memento";
+
 // *************** LOCAL STATE ***************
 // These are attached to the machine/installation