Fixing caps lock problems under ChromeOS where the tray does not properly follow the real caps lock…

chromeos/ime/fake_xkeyboard.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chromeos/ime/fake_xkeyboard.h"
 
 namespace chromeos {
 namespace input_method {
 
 FakeXKeyboard::FakeXKeyboard()
     : set_current_keyboard_layout_by_name_count_(0),
       caps_lock_is_enabled_(false),
       auto_repeat_is_enabled_(false) {
 }
 
+void FakeXKeyboard::AddObserver(XKeyboard::Observer* observer) {
+}
+
+void FakeXKeyboard::RemoveObserver(XKeyboard::Observer* observer) {
+}
+
 bool FakeXKeyboard::SetCurrentKeyboardLayoutByName(
     const std::string& layout_name) {
   ++set_current_keyboard_layout_by_name_count_;
   last_layout_ = layout_name;
   return true;
 }
 
 bool FakeXKeyboard::ReapplyCurrentKeyboardLayout() {
   return true;
 }
@@ skipping 25 matching lines @@
   return true;
 }
 
 bool FakeXKeyboard::SetAutoRepeatRate(const AutoRepeatRate& rate) {
   last_auto_repeat_rate_ = rate;
   return true;
 }
 
 }  // namespace input_method
 }  // namespace chromeos