Revert of More System Dialog printing code disabled on Windows.

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

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 61 matching lines @@
   void SelectFile(const base::FilePath& default_path);
 
   // Called when the print preview dialog is destroyed. This is the last time
   // this object has access to the PrintViewManager in order to disconnect the
   // observer.
   void OnPrintPreviewDialogDestroyed();
 
   // Called when print preview failed.
   void OnPrintPreviewFailed();
 
-#if !defined(OS_WIN)
   // Called when the user press ctrl+shift+p to display the native system
   // dialog.
   void ShowSystemDialog();
-#endif  // !OS_WIN
 
 #if defined(ENABLE_SERVICE_DISCOVERY)
   // PrivetLocalPrinterLister::Delegate implementation.
   virtual void LocalPrinterChanged(
       bool added,
       const std::string& name,
       bool has_local_printing,
       const local_discovery::DeviceDescription& description) OVERRIDE;
   virtual void LocalPrinterRemoved(const std::string& name) OVERRIDE;
   virtual void LocalPrinterCacheFlushed() OVERRIDE;
@@ skipping 47 matching lines @@
   // Handles the request to cancel the pending print request. |args| is unused.
   void HandleCancelPendingPrintRequest(const base::ListValue* args);
 
   // Handles a request to store data that the web ui wishes to persist.
   // First element of |args| is the data to persist.
   void HandleSaveAppState(const base::ListValue* args);
 
   // Gets the printer capabilities. First element of |args| is the printer name.
   void HandleGetPrinterCapabilities(const base::ListValue* args);
 
-#if !defined(OS_WIN)
   // Asks the initiator renderer to show the native print system dialog. |args|
   // is unused.
   void HandleShowSystemDialog(const base::ListValue* args);
-#endif  // !OS_WIN
 
   // Callback for the signin dialog to call once signin is complete.
   void OnSigninComplete();
 
   // Brings up a dialog to allow the user to sign into cloud print.
   // |args| is unused.
   void HandleSignin(const base::ListValue* args);
 
   // Generates new token and sends back to UI.
   void HandleGetAccessToken(const base::ListValue* args);
@@ skipping 173 matching lines @@
   base::WeakPtrFactory<PrintPreviewHandler> weak_factory_;
 
   // Notifies tests that want to know if the PDF has been saved. This doesn't
   // notify the test if it was a successful save, only that it was attempted.
   base::Closure pdf_file_saved_closure_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_