Print Preview: Display a throbber when the user requests the system print

chrome/browser/ui/browser.cc

 // 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.
 
 #include "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 1712 matching lines @@
   std::string page_url = EscapeQueryParamValue(tc->GetURL().spec(), false);
   std::string mailto = std::string("mailto:?subject=Fwd:%20") +
       title + "&body=%0A%0A" + page_url;
   platform_util::OpenExternal(GURL(mailto));
 }
 
 void Browser::Print() {
   if (switches::IsPrintPreviewEnabled())
     GetSelectedTabContentsWrapper()->print_view_manager()->PrintPreviewNow();
   else
-    GetSelectedTabContentsWrapper()->print_view_manager()->PrintNow();
+    GetSelectedTabContentsWrapper()->print_view_manager()->PrintNow(NULL);
 }
 
 void Browser::ToggleEncodingAutoDetect() {
   UserMetrics::RecordAction(UserMetricsAction("AutoDetectChange"));
   encoding_auto_detect_.SetValue(!encoding_auto_detect_.GetValue());
   // If "auto detect" is turned on, then any current override encoding
   // is cleared. This also implicitly performs a reload.
   // OTOH, if "auto detect" is turned off, we don't change the currently
   // active encoding.
   if (encoding_auto_detect_.GetValue()) {
@@ skipping 2954 matching lines @@
   TabContents* current_tab = GetSelectedTabContents();
   if (current_tab) {
     content_restrictions = current_tab->content_restrictions();
     NavigationEntry* active_entry = current_tab->controller().GetActiveEntry();
     // See comment in UpdateCommandsForTabState about why we call url().
     if (!SavePackage::IsSavableURL(active_entry ? active_entry->url() : GURL()))
       content_restrictions |= CONTENT_RESTRICTION_SAVE;
   }
   return content_restrictions;
 }