Revert of More System Dialog printing code disabled on Windows.

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 <map>
 #include <string>
@@ skipping 548 matching lines @@
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("getPreview",
       base::Bind(&PrintPreviewHandler::HandleGetPreview,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("print",
       base::Bind(&PrintPreviewHandler::HandlePrint,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("getPrinterCapabilities",
       base::Bind(&PrintPreviewHandler::HandleGetPrinterCapabilities,
                  base::Unretained(this)));
-#if !defined(OS_WIN)
   web_ui()->RegisterMessageCallback("showSystemDialog",
       base::Bind(&PrintPreviewHandler::HandleShowSystemDialog,
                  base::Unretained(this)));
-#endif  // !OS_WIN
   web_ui()->RegisterMessageCallback("signIn",
       base::Bind(&PrintPreviewHandler::HandleSignin,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("getAccessToken",
       base::Bind(&PrintPreviewHandler::HandleGetAccessToken,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("manageCloudPrinters",
       base::Bind(&PrintPreviewHandler::HandleManageCloudPrint,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("manageLocalPrinters",
@@ skipping 433 matching lines @@
     const base::ListValue* /*args*/) {
   ++manage_cloud_printers_dialog_request_count_;
   preview_web_contents()->OpenURL(content::OpenURLParams(
       cloud_devices::GetCloudPrintRelativeURL("manage.html"),
       content::Referrer(),
       NEW_FOREGROUND_TAB,
       content::PAGE_TRANSITION_LINK,
       false));
 }
 
-#if !defined(OS_WIN)
 void PrintPreviewHandler::HandleShowSystemDialog(
     const base::ListValue* /*args*/) {
   ReportStats();
   ReportUserActionHistogram(FALLBACK_TO_ADVANCED_SETTINGS_DIALOG);
 
   WebContents* initiator = GetInitiator();
   if (!initiator)
     return;
 
   printing::PrintViewManager* print_view_manager =
       printing::PrintViewManager::FromWebContents(initiator);
   print_view_manager->set_observer(this);
   print_view_manager->PrintForSystemDialogNow();
 
   // Cancel the pending preview request if exists.
   PrintPreviewUI* print_preview_ui =
       static_cast<PrintPreviewUI*>(web_ui()->GetController());
   print_preview_ui->OnCancelPendingPreviewRequest();
 }
-#endif  // !OS_WIN
 
 void PrintPreviewHandler::HandleManagePrinters(
     const base::ListValue* /*args*/) {
   ++manage_printers_dialog_request_count_;
   printing::PrinterManagerDialog::ShowPrinterManagerDialog();
 }
 
 void PrintPreviewHandler::HandlePrintWithCloudPrintDialog(
     const base::ListValue* args) {
   int page_count = 0;
@@ skipping 225 matching lines @@
   print_view_manager->set_observer(NULL);
 }
 
 void PrintPreviewHandler::OnPrintPreviewFailed() {
   if (reported_failed_preview_)
     return;
   reported_failed_preview_ = true;
   ReportUserActionHistogram(PREVIEW_FAILED);
 }
 
-#if !defined(OS_WIN)
 void PrintPreviewHandler::ShowSystemDialog() {
   HandleShowSystemDialog(NULL);
 }
-#endif  // !OS_WIN
 
 void PrintPreviewHandler::FileSelected(const base::FilePath& path,
                                        int index, void* params) {
   // Updating |save_path_| to the newly selected folder.
   printing::StickySettings* sticky_settings = GetStickySettings();
   sticky_settings->StoreSavePath(path.DirName());
   sticky_settings->SaveInPrefs(Profile::FromBrowserContext(
       preview_web_contents()->GetBrowserContext())->GetPrefs());
   web_ui()->CallJavascriptFunction("fileSelectionCompleted");
   print_to_pdf_path_ = path;
@@ skipping 287 matching lines @@
 
 void PrintPreviewHandler::UnregisterForMergeSession() {
   if (reconcilor_)
     reconcilor_->RemoveMergeSessionObserver(this);
 }
 
 void PrintPreviewHandler::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   pdf_file_saved_closure_ = closure;
 }