Copy Smart Lock user preferences to local state so we can access them on the sign-in screen.

chrome/browser/signin/easy_unlock_service.h

Index: chrome/browser/signin/easy_unlock_service.h
diff --git a/chrome/browser/signin/easy_unlock_service.h b/chrome/browser/signin/easy_unlock_service.h
index 713986b03e4803c058810ea5af265df6419d65a5..caaa460557640140c0f126eb05ba981078bb2704 100644
--- a/chrome/browser/signin/easy_unlock_service.h
+++ b/chrome/browser/signin/easy_unlock_service.h
@@ -50,6 +50,16 @@ class EasyUnlockService : public KeyedService {
     TYPE_SIGNIN
   };
 
+  // Easy Unlock settings that the user can configure.
+  struct UserSettings {
+    UserSettings();
+    ~UserSettings();
+
+    // Whether to require the remote device to be in very close proximity
+    // before allowing unlock (~1 feet).
+    bool require_close_proximity;
+  };
+
   // Gets EasyUnlockService instance.
   static EasyUnlockService* Get(Profile* profile);
 
@@ -66,6 +76,9 @@ class EasyUnlockService : public KeyedService {
   // Removes the hardlock state for the given user.
   static void ResetLocalStateForUser(const std::string& user_id);
 
+  // Returns the user's preferences.
+  static UserSettings GetUserSettings(const std::string& user_id);
+
   // Returns true if Easy sign-in is enabled.
   static bool IsSignInEnabled();