Make almost all public functions in XKeyboard pure virtual

chrome/browser/chromeos/login/webui_login_display.cc

Index: chrome/browser/chromeos/login/webui_login_display.cc
diff --git a/chrome/browser/chromeos/login/webui_login_display.cc b/chrome/browser/chromeos/login/webui_login_display.cc
index f770bd2e97f86ef082372d57df98a03bacc838fa..301005e70f59dad055089862dfede4e8b209aefa 100644
--- a/chrome/browser/chromeos/login/webui_login_display.cc
+++ b/chrome/browser/chromeos/login/webui_login_display.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/chromeos/login/webui_login_display.h"
 
+#include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/input_method/xkeyboard.h"
 #include "chrome/browser/chromeos/login/webui_login_view.h"
 #include "chrome/browser/chromeos/login/wizard_accessibility_helper.h"
@@ -112,7 +113,9 @@ void WebUILoginDisplay::ShowError(int error_msg_id,
   }
 
   // Display a warning if Caps Lock is on and error is authentication-related.
-  if (input_method::XKeyboard::CapsLockIsEnabled() &&
+  input_method::InputMethodManager* ime_manager =
+      input_method::InputMethodManager::GetInstance();
+  if (ime_manager->GetXKeyboard()->CapsLockIsEnabled() &&
       error_msg_id != IDS_LOGIN_ERROR_WHITELIST) {
     // TODO(ivankr): use a format string instead of concatenation.
     error_text += "\n" +