Print Preview: Hook up the print button to initiate a normal print operation....

chrome/renderer/print_web_view_helper.h

 // 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.
 
 #ifndef CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #define CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 71 matching lines @@
   explicit PrintWebViewHelper(RenderView* render_view);
   virtual ~PrintWebViewHelper();
 
   // Prints |frame|.
   void PrintFrame(WebKit::WebFrame* frame,
                   bool script_initiated,
                   bool is_preview);
 
   // Message handlers.  Public for testing.
   void OnPrintingDone(int document_cookie, bool success);
+  void OnPrintForPrintPreview();
   void OnPrintPages();
   void OnPrintPreview();
   void OnPrintNodeUnderContextMenu();
 
  protected:
   bool CopyAndPrint(WebKit::WebFrame* web_frame);
 
   // Prints the page listed in |params|.
 #if defined(USE_X11)
   void PrintPage(const ViewMsg_PrintPage_Params& params,
@@ skipping 96 matching lines @@
   scoped_ptr<ViewMsg_PrintPages_Params> print_pages_params_;
   base::Time last_cancelled_script_print_;
   int user_cancelled_scripted_print_count_;
   bool is_preview_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 #endif  // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_