Add options to write version number to registry.

chrome/installer/setup/setup_constants.h

Index: chrome/installer/setup/setup_constants.h
diff --git a/chrome/installer/setup/setup_constants.h b/chrome/installer/setup/setup_constants.h
index 9e146b811ef4806761b9830037ab0bdaf3fa8ba9..4b958201cd340da8bc017cd91eccef97f2564ce3 100644
--- a/chrome/installer/setup/setup_constants.h
+++ b/chrome/installer/setup/setup_constants.h
@@ -20,6 +20,14 @@ extern const wchar_t kInstallSourceChromeDir[];
 
 extern const wchar_t kMediaPlayerRegPath[];
 
+namespace switches {
+
+extern const char kDelay[];
+extern const char kSetDisplayVersionProduct[];
+extern const char kSetDisplayVersionValue[];
+
+}  // namespace switches
+
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_SETUP_SETUP_CONSTANTS_H__