Disable printing context menus on the print preview page.

chrome/browser/printing/print_preview_tab_controller.cc

 // Copyright (c) 2010 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/printing/print_preview_tab_controller.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 17 matching lines @@
 }
 
 PrintPreviewTabController::~PrintPreviewTabController() {
   preview_tab_map_.clear();
 }
 
 TabContents* PrintPreviewTabController::GetOrCreatePreviewTab(
     TabContents* initiator_tab, int browser_window_id ) {
   DCHECK(initiator_tab);
 
-  if (IsPrintPreviewTab(initiator_tab))
-    return initiator_tab;
-
   // Get the print preview tab for |initiator_tab|.
   TabContents* preview_tab = GetPrintPreviewForTab(initiator_tab);
   if (preview_tab) {
     // Show current preview tab.
     preview_tab->Activate();
     return preview_tab;
   }
   return CreatePrintPreviewTab(initiator_tab, browser_window_id);
 }
 
+// static
 bool PrintPreviewTabController::IsPrintPreviewTab(TabContents* tab) {
   const GURL& url = tab->GetURL();
   return (url.SchemeIs(chrome::kChromeUIScheme) &&
           url.host() == chrome::kChromeUIPrintHost);
 }
 
 TabContents* PrintPreviewTabController::GetInitiatorTab(
     TabContents* preview_tab) {
   PrintPreviewTabMap::iterator it = preview_tab_map_.find(preview_tab);
   if (it != preview_tab_map_.end())
@@ skipping 124 matching lines @@
   // If |source_tab| is |preview_tab|, erase the map entry.
   if (source_tab == preview_tab) {
     preview_tab_map_.erase(preview_tab);
     RemoveObservers(preview_tab);
   }
 
   if (initiator_tab)
     RemoveObservers(initiator_tab);
 }
 
-} // namespace printing
+}  // namespace printing