Removed unused code path.

chrome/browser/ui/webui/print_preview/print_preview_ui.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_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_UI_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 86 matching lines @@
   // Notifies the Web UI that the 0-based page |page_number| has been rendered.
   // |preview_request_id| indicates wich request resulted in this response.
   void OnDidPreviewPage(int page_number, int preview_request_id);
 
   // Notifies the Web UI renderer that preview data is available.
   // |expected_pages_count| specifies the total number of pages.
   // |preview_request_id| indicates which request resulted in this response.
   void OnPreviewDataIsAvailable(int expected_pages_count,
                                 int preview_request_id);
 
-  // Notifies the Web UI renderer to reuse the preview data.
-  // |preview_request_id| indicates which request resulted in this response.
-  void OnReusePreviewData(int preview_request_id);
-
   // Notifies the Web UI that preview dialog has been destroyed. This is the
   // last chance to communicate with the initiator before the association is
   // erased.
   void OnPrintPreviewDialogDestroyed();
 
   // Notifies the Web UI that the print preview failed to render.
   void OnPrintPreviewFailed();
 
   // Notified the Web UI that this print preview dialog's RenderProcess has been
   // closed, which may occur for several reasons, e.g. tab closure or crash.
@@ skipping 76 matching lines @@
   // title.
   string16 initiator_title_;
 
   // Keeps track of whether OnClosePrintPreviewDialog() has been called or not.
   bool dialog_closed_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_UI_H_