Block printing from blocked popup.

chrome/renderer/print_web_view_helper.cc

 // 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.
 
 #include "chrome/renderer/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 643 matching lines @@
       is_preview_enabled_(IsPrintPreviewEnabled()),
       is_print_ready_metafile_sent_(false),
       ignore_css_margins_(false),
       fit_to_page_(true),
       user_cancelled_scripted_print_count_(0),
       notify_browser_of_print_failure_(true) {
 }
 
 PrintWebViewHelper::~PrintWebViewHelper() {}
 
+bool PrintWebViewHelper::IsScriptInitiatedPrintAllowed(
+    WebKit::WebFrame* frame) {
+  if (IsScriptInitiatedPrintTooFrequent(frame))
+    return false;
+  bool allowed = false;
+  IPC::SyncMessage* msg =
+      new PrintHostMsg_CheckScriptedPrintAllowed(routing_id(), &allowed);
+  msg->EnableMessagePumping();
+  Send(msg);
+  return allowed;
+}
+
 // Prints |frame| which called window.print().
 void PrintWebViewHelper::PrintPage(WebKit::WebFrame* frame) {
   DCHECK(frame);
 
   // Allow Prerendering to cancel this print request if necessary.
   if (prerender::PrerenderHelper::IsPrerendering(render_view())) {
     Send(new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id()));
     return;
   }
 
-  if (IsScriptInitiatedPrintTooFrequent(frame))
+  if (!IsScriptInitiatedPrintAllowed(frame))
     return;
   IncrementScriptedPrintCount();
 
   if (is_preview_enabled_) {
     print_preview_context_.InitWithFrame(frame);
 
     RequestPrintPreview(PRINT_PREVIEW_SCRIPTED);
   } else {
     Print(frame, WebNode());
   }
@@ skipping 1089 matching lines @@
   DCHECK(IsRendering());
   return prep_frame_view_->GetPrintCanvasSize();
 }
 
 void PrintWebViewHelper::PrintPreviewContext::ClearContext() {
   prep_frame_view_.reset();
   metafile_.reset();
   pages_to_render_.clear();
   error_ = PREVIEW_ERROR_NONE;
 }