Create gdk_event right way to elimination compilation error in chroot environment.

chrome/browser/chromeos/login/screen_locker_tester.cc

Index: chrome/browser/chromeos/login/screen_locker_tester.cc
diff --git a/chrome/browser/chromeos/login/screen_locker_tester.cc b/chrome/browser/chromeos/login/screen_locker_tester.cc
index 776aa6ab02c96164df56f7ce87d28457ccbdf04c..ea19127fdf92566e1d46fcc5050d709f9c78cf13 100644
--- a/chrome/browser/chromeos/login/screen_locker_tester.cc
+++ b/chrome/browser/chromeos/login/screen_locker_tester.cc
@@ -7,6 +7,7 @@
 #include <gdk/gdkkeysyms.h>
 
 #include "app/l10n_util.h"
+#include "base/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/mock_authenticator.h"
 #include "chrome/browser/chromeos/login/screen_locker.h"
@@ -37,10 +38,13 @@ void ScreenLockerTester::EnterPassword(const char* password) {
   DCHECK(ScreenLocker::screen_locker_);
   views::Textfield* pass = GetPasswordField();
   pass->SetText(ASCIIToUTF16(password));
-  GdkEventKey eventKey;
-  eventKey.keyval = GDK_Return;
-  views::Textfield::Keystroke ret(&eventKey);
+  GdkEvent* event = gdk_event_new(GDK_KEY_PRESS);
+
+  event->key.keyval = GDK_Return;
+  views::Textfield::Keystroke ret(&event->key);
   ScreenLocker::screen_locker_->screen_lock_view_->HandleKeystroke(pass, ret);
+
+  gdk_event_free(event);
 }
 
 views::Textfield* ScreenLockerTester::GetPasswordField() {