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..b585073d9da085f425576bd64ac7fd7a611a2f97 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -87,7 +87,6 @@ function onLoad() {
   lastPreviewRequestID = initialPreviewRequestID;
 
   if (!checkCompatiblePluginExists()) {
-    disableInputElementsInSidebar();
     displayErrorMessageWithButton(localStrings.getString('noPlugin'),
                                   localStrings.getString('launchNativeDialog'),
                                   launchNativePrintDialog);
@@ -149,11 +148,22 @@ 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) {
+  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.
  */
 function onInitiatorTabClosed(initiatorTabURL) {
-  disableInputElementsInSidebar();
   displayErrorMessageWithButton(
       localStrings.getString('initiatorTabClosed'),
       localStrings.getString('reopenPage'),
@@ -732,6 +742,8 @@ function setColor(color) {
  * @param {string} errorMessage The error message to be displayed.
  */
 function displayErrorMessage(errorMessage) {
+  disableInputElementsInSidebar();

[Lei Zhang, 2011/08/16 00:59:23]

This will change the behavior for printPreviewFailed(). Let's not do this right
now and fix printPreviewFailed in a separate CL.

[kmadhusu, 2011/08/16 01:31:37]

Done.

+
   $('print-button').disabled = true;
   $('overlay-layer').classList.remove('invisible');
   $('dancing-dots-text').classList.add('hidden');
@@ -755,6 +767,8 @@ function displayErrorMessage(errorMessage) {
  */
 function displayErrorMessageWithButton(
     errorMessage, buttonText, buttonListener) {
+  disableInputElementsInSidebar();
+
   var errorButton = $('error-button');
   errorButton.disabled = false;
   errorButton.textContent = buttonText;