Integrate WebUI Login with cros.

chrome/browser/extensions/extension_input_api.cc

Index: chrome/browser/extensions/extension_input_api.cc
diff --git a/chrome/browser/extensions/extension_input_api.cc b/chrome/browser/extensions/extension_input_api.cc
index 53d013b0d0a7d6404724431da54654bd1b04ab63..d6078131291b4c4bc6964fbd8be246df5407334a 100644
--- a/chrome/browser/extensions/extension_input_api.cc
+++ b/chrome/browser/extensions/extension_input_api.cc
@@ -23,6 +23,7 @@
 #if defined(OS_CHROMEOS) && defined(TOUCH_UI)
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/input_method_library.h"
+#include "chrome/browser/chromeos/login/dom_login_display.h"
 #endif
 
 namespace {
@@ -64,6 +65,12 @@ void InputFunction::Run() {
 }
 
 views::Widget* SendKeyboardEventInputFunction::GetTopLevelWidget() {
+#if defined(OS_CHROMEOS) && defined(TOUCH_UI)
+  views::Widget* login_window = chromeos::DOMLoginDisplay::GetLoginWindow();
+  if (login_window)
+    return login_window;
+#endif
+
   Browser* browser = GetCurrentBrowser();
   if (!browser)
     return NULL;