Guest Mode: input method should default to the underlying latin keyboard layout.

chromeos/ime/input_method_manager.h

Index: chromeos/ime/input_method_manager.h
diff --git a/chromeos/ime/input_method_manager.h b/chromeos/ime/input_method_manager.h
index f293882e0b51152335ef824901033b1e08b5edbb..7dd2d49b6b1ea590ccec8f094b37dfce671250c4 100644
--- a/chromeos/ime/input_method_manager.h
+++ b/chromeos/ime/input_method_manager.h
@@ -116,9 +116,11 @@ class CHROMEOS_EXPORT InputMethodManager {
   // would be enabled. Likewise, for Germany locale, US Qwerty which corresponds
   // to the hardware keyboard layout and several keyboard layouts for Germany
   // would be enabled.
-  // This method is for setting up i18n keyboard layouts for the login screen.
+  //   For the login screen you need login_layouts_only=true to filter
+  // unsuitable keyboard layouts.
   virtual void EnableLayouts(const std::string& language_code,
-                             const std::string& initial_layout) = 0;
+                             const std::string& initial_layout,
+                             const bool login_layouts_only) = 0;
 
   // Activates the input method property specified by the |key|.
   virtual void ActivateInputMethodProperty(const std::string& key) = 0;