Restored disable print preview policy.

chrome/renderer/printing/print_web_view_helper.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_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_
 #define CHROME_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 51 matching lines @@
 // PrintWebViewHelper handles most of the printing grunt work for RenderView.
 // We plan on making print asynchronous and that will require copying the DOM
 // of the document and creating a new WebView with the contents.
 class PrintWebViewHelper
     : public content::RenderViewObserver,
       public content::RenderViewObserverTracker<PrintWebViewHelper> {
  public:
   explicit PrintWebViewHelper(content::RenderView* render_view);
   virtual ~PrintWebViewHelper();
 
-  // Disable print preview and switch to system dialog printing even if full

[Lei Zhang, 2014/09/24 17:53:43]

Not sure if you want to keep this around for CEF?

[Vitaly Buka (NO REVIEWS), 2014/09/24 18:07:03]

Done.

it duplicates kDisablePrintPreview, but we could keep it to avoid switching
back-and-forth on their side.

-  // printing is build-in. This method is used by CEF.
-  static void DisablePreview();
-
   bool IsPrintingEnabled();
 
   void PrintNode(const blink::WebNode& node);
 
  private:
   friend class PrintWebViewHelperTestBase;
   FRIEND_TEST_ALL_PREFIXES(PrintWebViewHelperPreviewTest,
                            BlockScriptInitiatedPrinting);
   FRIEND_TEST_ALL_PREFIXES(PrintWebViewHelperTest, OnPrintPages);
   FRIEND_TEST_ALL_PREFIXES(PrintWebViewHelperTest,
@@ skipping 216 matching lines @@
   // Returns true if print preview should continue, false on failure.
   bool PreviewPageRendered(int page_number, PdfMetafileSkia* metafile);
 
   void SetPrintPagesParams(const PrintMsg_PrintPages_Params& settings);
 
   // WebView used only to print the selection.
   scoped_ptr<PrepareFrameAndViewForPrint> prep_frame_view_;
   bool reset_prep_frame_view_;
 
   scoped_ptr<PrintMsg_PrintPages_Params> print_pages_params_;
+  bool is_preview_enabled_;
   bool is_print_ready_metafile_sent_;
   bool ignore_css_margins_;
 
   // Used for scripted initiated printing blocking.
   bool is_scripted_printing_blocked_;
 
   // Let the browser process know of a printing failure. Only set to false when
   // the failure came from the browser in the first place.
   bool notify_browser_of_print_failure_;
 
@@ skipping 139 matching lines @@
   base::Closure on_stop_loading_closure_;
 
   base::WeakPtrFactory<PrintWebViewHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_RENDERER_PRINTING_PRINT_WEB_VIEW_HELPER_H_