Add login screen locale and input method device policies

ui/base/ime/chromeos/mock_input_method_manager.h

Index: ui/base/ime/chromeos/mock_input_method_manager.h
diff --git a/ui/base/ime/chromeos/mock_input_method_manager.h b/ui/base/ime/chromeos/mock_input_method_manager.h
index 586d9e56d43fe3a786af49fdd845a41e19713806..ada754319042892b9822946e9ac43a842d41d7da 100644
--- a/ui/base/ime/chromeos/mock_input_method_manager.h
+++ b/ui/base/ime/chromeos/mock_input_method_manager.h
@@ -53,10 +53,17 @@ class UI_BASE_IME_EXPORT MockInputMethodManager : public InputMethodManager {
     InputMethodDescriptor GetCurrentInputMethod() const override;
     bool ReplaceEnabledInputMethods(
         const std::vector<std::string>& new_active_input_method_ids) override;
+    bool SetAllowedKeyboardLayoutInputMethods(
+        const std::vector<std::string>& new_allowed_input_method_ids) override;
+    const std::vector<std::string>& GetAllowedKeyboardLayoutInputMethods()
+        override;
 
     // The active input method ids cache (actually default only)
     std::vector<std::string> active_input_method_ids;
 
+    // Allowed input methods ids
+    std::vector<std::string> allowed_keyboard_layout_input_method_ids;

[Yuki, 2017/01/31 15:18:29]

nit: I'd recommend to rename this without "keyboard_layout_".

[Yuki, 2017/01/31 15:18:29]

nit: I don't see a reason to expose this member as public:.  Should be private:,
I guess?  (Please rename this with the underscore at the end of the name if
you're going to move this to private:.)

[pmarko, 2017/02/01 14:07:57]

Done (both).

+
    protected:
     friend base::RefCounted<InputMethodManager::State>;
     ~State() override;