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

chrome/browser/ui/webui/print_preview_ui.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/print_preview_ui.h"
 
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/printing/print_preview_data_service.h"
@@ skipping 36 matching lines @@
 
 void PrintPreviewUI::SetPrintPreviewDataForIndex(int index,
                                                  const RefCountedBytes* data) {
   print_preview_data_service()->SetDataEntry(preview_ui_addr_str_, index, data);
 }
 
 void PrintPreviewUI::ClearAllPreviewData() {
   print_preview_data_service()->RemoveEntry(preview_ui_addr_str_);
 }
 
-void PrintPreviewUI::OnInitiatorTabClosed(
-    const std::string& initiator_url) {
-  StringValue initiator_tab_url(initiator_url);
+void PrintPreviewUI::SetInitiatorTabURL(const std::string& initiator_url) {
+  initiator_url_ = initiator_url;
+}
+
+void PrintPreviewUI::OnInitiatorTabCrashed() {
+  StringValue initiator_tab_url(initiator_url_);
+  CallJavascriptFunction("onInitiatorTabCrashed", initiator_tab_url);
+}
+
+void PrintPreviewUI::OnInitiatorTabClosed() {
+  StringValue initiator_tab_url(initiator_url_);
   CallJavascriptFunction("onInitiatorTabClosed", initiator_tab_url);
 }
 
 void PrintPreviewUI::OnPrintPreviewRequest() {
   request_count_++;
 }
 
 void PrintPreviewUI::OnDidGetPreviewPageCount(
     const PrintHostMsg_DidGetPreviewPageCount_Params& params) {
   DCHECK_GT(params.page_count, 0);
@@ skipping 37 matching lines @@
                          expected_pages_count);
     initial_preview_start_time_ = base::TimeTicks();
   }
   base::StringValue title(job_title);
   base::StringValue ui_identifier(preview_ui_addr_str_);
   base::FundamentalValue ui_preview_request_id(preview_request_id);
   CallJavascriptFunction("updatePrintPreview", title, ui_identifier,
                          ui_preview_request_id);
 }
 
-void PrintPreviewUI::OnNavigation() {
-  handler_->OnNavigation();
+void PrintPreviewUI::OnTabDestroyed() {
+  handler_->OnTabDestroyed();
 }
 
 void PrintPreviewUI::OnFileSelectionCancelled() {
   CallJavascriptFunction("fileSelectionCancelled");
 }
 
 void PrintPreviewUI::OnPrintPreviewFailed() {
   DecrementRequestCount();
   CallJavascriptFunction("printPreviewFailed");
 }
@@ skipping 11 matching lines @@
 }
 
 void PrintPreviewUI::DecrementRequestCount() {
   if (request_count_ > 0)
     request_count_--;
 }
 
 int PrintPreviewUI::document_cookie() {
   return document_cookie_;
 }