diff --git a/mozilla/webshell/tests/viewer/nsGTKMain.cpp b/mozilla/webshell/tests/viewer/nsGTKMain.cpp
index 59ec3d8b2c4..0e7b05696a6 100644
--- a/mozilla/webshell/tests/viewer/nsGTKMain.cpp
+++ b/mozilla/webshell/tests/viewer/nsGTKMain.cpp
@@ -62,6 +62,7 @@ nsresult
 nsNativeBrowserWindow::InitNativeWindow()
 {
 	// override to do something special with platform native windows
+  return NS_OK;
 }
 
 static void MenuProc(PRUint32 aId) 
diff --git a/mozilla/webshell/tests/viewer/nsUnixMain.cpp b/mozilla/webshell/tests/viewer/nsUnixMain.cpp
index 873468261cd..ba67bd818f5 100644
--- a/mozilla/webshell/tests/viewer/nsUnixMain.cpp
+++ b/mozilla/webshell/tests/viewer/nsUnixMain.cpp
@@ -99,6 +99,7 @@ nsresult
 nsNativeBrowserWindow::InitNativeWindow()
 {
 	// override to do something special with platform native windows
+  return NS_OK;
 }
 
 static void MenuProc(PRUint32 aId) 
diff --git a/mozilla/webshell/tests/viewer/nsWinMain.cpp b/mozilla/webshell/tests/viewer/nsWinMain.cpp
index 21d2f015c0f..ee6d8856688 100644
--- a/mozilla/webshell/tests/viewer/nsWinMain.cpp
+++ b/mozilla/webshell/tests/viewer/nsWinMain.cpp
@@ -69,6 +69,7 @@ nsresult
 nsNativeBrowserWindow::InitNativeWindow()
 {
 	// override to do something special with platform native windows
+  return NS_OK;
 }
 
 nsresult