Merge 145424 - Fix crash due to incorrectly parented window

chrome/browser/ui/webui/print_preview/print_preview_handler.cc

 // Copyright (c) 2012 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/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 #include <vector>
@@ skipping 528 matching lines @@
   if (handler.get()) {
     PrintPreviewUI* print_preview_ui =
         static_cast<PrintPreviewUI*>(handler->web_ui()->GetController());
     if (print_preview_ui)
       print_preview_ui->OnReloadPrintersList();
   }
 }
 
 void PrintPreviewHandler::HandleSignin(const ListValue* /*args*/) {
   gfx::NativeWindow modal_parent =
-      preview_web_contents()->GetView()->GetTopLevelNativeWindow();
+      platform_util::GetTopLevel(preview_web_contents()->GetNativeView());
   print_dialog_cloud::CreateCloudPrintSigninDialog(
       preview_web_contents()->GetBrowserContext(),
       modal_parent,
       base::Bind(&PrintPreviewHandler::OnSigninComplete, AsWeakPtr()));
 }
 
 void PrintPreviewHandler::HandlePrintWithCloudPrint(const ListValue* /*args*/) {
   // Record the number of times the user asks to print via cloud print
   // instead of the print preview dialog.
   ReportStats();
 
   PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(
       web_ui()->GetController());
   scoped_refptr<base::RefCountedBytes> data;
   print_preview_ui->GetPrintPreviewDataForIndex(
       printing::COMPLETE_PREVIEW_DOCUMENT_INDEX, &data);
   if (!data.get()) {
     NOTREACHED();
     return;
   }
   DCHECK_GT(data->size(), 0U);
 
   gfx::NativeWindow modal_parent =
-      preview_web_contents()->GetView()->GetTopLevelNativeWindow();
+      platform_util::GetTopLevel(preview_web_contents()->GetNativeView());
   print_dialog_cloud::CreatePrintDialogForBytes(
       preview_web_contents()->GetBrowserContext(),
       modal_parent,
       data,
       string16(print_preview_ui->initiator_tab_title()),
       string16(),
       std::string("application/pdf"));
 
   // Once the cloud print dialog comes up we're no longer in a background
   // printing situation.  Close the print preview.
@@ skipping 327 matching lines @@
     return;
 
   // We no longer require the initiator tab details. Remove those details
   // associated with the preview tab to allow the initiator tab to create
   // another preview tab.
   printing::PrintPreviewTabController* tab_controller =
       printing::PrintPreviewTabController::GetInstance();
   if (tab_controller)
     tab_controller->EraseInitiatorTabInfo(preview_tab_contents());
 }