Added resources.

cloud_print/virtual_driver/win/virtual_driver_helpers.h

Index: cloud_print/virtual_driver/win/virtual_driver_helpers.h
diff --git a/cloud_print/virtual_driver/win/virtual_driver_helpers.h b/cloud_print/virtual_driver/win/virtual_driver_helpers.h
index 6d2a75331b364e7c8da2b44e9ed87c43e2f5deb7..bc777aa67c0a59b1a53fbc56722cc588ca2591d7 100644
--- a/cloud_print/virtual_driver/win/virtual_driver_helpers.h
+++ b/cloud_print/virtual_driver/win/virtual_driver_helpers.h
@@ -7,19 +7,32 @@
 #pragma once
 
 #include <windows.h>
+#include "base/string16.h"
 
 class FilePath;
 
 namespace cloud_print {
 
+// Returns TRUE if the current OS is 64 bit.
+bool IsSystem64Bit();
+
 // Convert an HRESULT to a localized string and display it in a message box.
-void DisplayWindowsMessage(HWND hwnd, HRESULT message_id);
+void DisplayWindowsMessage(HWND hwnd,
+                           HRESULT message_id,
+                           const string16 &caption);
 
 // Similar to the Windows API call GetLastError but returns an HRESULT.
 HRESULT GetLastHResult();
 
+// Returns the correct port monitor DLL file name for the current machine.
+string16 GetPortMonitorDllName();
+
 // Gets the standard install path for "version 3" print drivers.
 HRESULT GetPrinterDriverDir(FilePath* path);
+
+// Retrieves a string from the string table of the module that contains the
+// calling code.
+string16 LoadLocalString(DWORD string_id);
 }
 
 #endif  // CLOUD_PRINT_VIRTUAL_DRIVER_WIN_HELPERS_H_