Restore to user selected wallpaper after browser crash

chrome/browser/ui/views/ash/chrome_shell_delegate.cc

Index: chrome/browser/ui/views/ash/chrome_shell_delegate.cc
diff --git a/chrome/browser/ui/views/ash/chrome_shell_delegate.cc b/chrome/browser/ui/views/ash/chrome_shell_delegate.cc
index 1f7d70b3f0716ab123b25112b2cecb0e43cf907e..3aecd39cbb3716d6c5e113d88fd320dc15cc036d 100644
--- a/chrome/browser/ui/views/ash/chrome_shell_delegate.cc
+++ b/chrome/browser/ui/views/ash/chrome_shell_delegate.cc
@@ -23,6 +23,7 @@
 
 #if defined(OS_CHROMEOS)
 #include "base/chromeos/chromeos_version.h"
+#include "chrome/browser/chromeos/background/desktop_background_observer.h"
 #include "chrome/browser/chromeos/dbus/dbus_thread_manager.h"
 #include "chrome/browser/chromeos/dbus/power_manager_client.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
@@ -135,6 +136,14 @@ ash::SystemTrayDelegate* ChromeShellDelegate::CreateSystemTrayDelegate(
 #endif
 }
 
+ash::UserWallpaperDelegate* ChromeShellDelegate::CreateUserWallpaperDelegate() {
+#if defined(OS_CHROMEOS)
+  return chromeos::CreateUserWallpaperDelegate();
+#else
+  return NULL;
+#endif
+}
+
 void ChromeShellDelegate::Observe(int type,
                                   const content::NotificationSource& source,
                                   const content::NotificationDetails& details) {