Print Preview: Handle a crashed initiator tab by showing a message in PP.

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 e6dfa3334bb39e663626421c5fd8ea531248b4aa..4beefe5c179703a42327bd19c4714407106c00a4 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -149,6 +149,19 @@ function launchNativePrintDialog() {
 
 /**
  * Disables the controls which need the initiator tab to generate preview
+ * data. This function is called when the initiator tab has crashed.
+ * @param {string} initiatorTabURL The URL of the initiator tab.
+ */
+function onInitiatorTabCrashed(initiatorTabURL) {
+  disableInputElementsInSidebar();
+  displayErrorMessageWithButton(
+      localStrings.getString('initiatorTabCrashed'),
+      localStrings.getString('reopenPage'),
+      function() { chrome.send('reloadCrashedInitiatorTab'); });
+}
+
+/**
+ * Disables the controls which need the initiator tab to generate preview
  * data. This function is called when the initiator tab is closed.
  * @param {string} initiatorTabURL The URL of the initiator tab.
  */