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

chrome/browser/ui/webui/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview_handler.cc
index f807a6c50af0f31a25f8bd538cd67bcb7f90f78b..6b9bd23f73040a8fb422b0ebec47fcc7d54a0f8f 100644
--- a/chrome/browser/ui/webui/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview_handler.cc
@@ -432,6 +432,8 @@ void PrintPreviewHandler::RegisterMessages() {
       NewCallback(this, &PrintPreviewHandler::HandleManageCloudPrint));
   web_ui_->RegisterMessageCallback("manageLocalPrinters",
       NewCallback(this, &PrintPreviewHandler::HandleManagePrinters));
+  web_ui_->RegisterMessageCallback("reloadCrashedInitiatorTab",
+      NewCallback(this, &PrintPreviewHandler::HandleReloadCrashedInitiatorTab));
   web_ui_->RegisterMessageCallback("closePrintPreviewTab",
       NewCallback(this, &PrintPreviewHandler::HandleClosePreviewTab));
   web_ui_->RegisterMessageCallback("hidePreview",
@@ -651,6 +653,20 @@ void PrintPreviewHandler::HandleManagePrinters(const ListValue* args) {
   printing::PrinterManagerDialog::ShowPrinterManagerDialog();
 }
 
+void PrintPreviewHandler::HandleReloadCrashedInitiatorTab(
+    const ListValue* /* args */) {
+  ReportStats();
+  ReportUserActionHistogram(PREVIEW_FAILED);
+
+  TabContents* initiator_tab = GetInitiatorTab();
+  if (!initiator_tab)
+    return;
+
+  initiator_tab->OpenURL(
+      initiator_tab->GetURL(), GURL(), CURRENT_TAB, PageTransition::RELOAD);
+  ActivateInitiatorTabAndClosePreviewTab();
+}
+
 void PrintPreviewHandler::HandleClosePreviewTab(const ListValue* args) {
   ReportStats();
   ReportUserActionHistogram(CANCEL);