Print preview not showing if default print is invalid.

chrome/browser/resources/print_preview/print_preview.js

Index: chrome/browser/resources/print_preview/print_preview.js
diff --git a/chrome/browser/resources/print_preview/print_preview.js b/chrome/browser/resources/print_preview/print_preview.js
index 709922bc42c7161a61e3a825c26788b9dcc31f63..d288c7ad34da1d3c017feaed7befb1fd1ae92d1d 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -814,6 +814,18 @@ function printPreviewFailed() {
 }
 
 /**
+ * Display an error message when encountered invalid printer settings.
+ * Called from PrintPreviewMessageHandler::OnInvalidDefaultPrinter().
+ */
+function invalidPrinterSettings() {

[kmadhusu, 2011/08/30 02:11:27]

Using "isTabHidden" variable, you can merge invalidPrinterSettingsAlert()
function definition with this function. 

if (isTabHidden)
  alert(...);
else
  displayErrorMessage(...);

[arthurhsu, 2011/08/30 20:43:03]

Done.

+  displayErrorMessage(localStrings.getString('invalidPrinterSettings'));
+}
+
+function invalidPrinterSettingsAlert() {

[kmadhusu, 2011/08/30 02:11:27]

This function is not required as per my previous comment.

[arthurhsu, 2011/08/30 20:43:03]

Done.

+  alert(localStrings.getString('invalidPrinterSettings'));
+}
+
+/**
  * Called when the PDF plugin loads its document.
  */
 function onPDFLoad() {