<webview>: Do not show blocked_by_client error page for guest.

content/browser/browser_plugin/browser_plugin_guest.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 "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 488 matching lines @@
   // focus.
   *renderer_prefs = *embedder_web_contents_->GetMutableRendererPrefs();
 
   // We would like the guest to report changes to frame names so that we can
   // update the BrowserPlugin's corresponding 'name' attribute.
   // TODO(fsamuel): Remove this once http://crbug.com/169110 is addressed.
   renderer_prefs->report_frame_name_changes = true;
   // Navigation is disabled in Chrome Apps. We want to make sure guest-initiated
   // navigations still continue to function inside the app.
   renderer_prefs->browser_handles_all_top_level_requests = false;
+  // Disable "client blocked" error page for browser plugin.
+  renderer_prefs->disable_client_blocked_error_page = true;
 
   // Listen to embedder visibility changes so that the guest is in a 'shown'
   // state if both the embedder is visible and the BrowserPlugin is marked as
   // visible.
   notification_registrar_.Add(
       this, NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED,
       Source<WebContents>(embedder_web_contents_));
 
   embedder_rvh_observer_.reset(new EmbedderRenderViewHostObserver(this));
 
@@ skipping 1161 matching lines @@
   request_info.Set(browser_plugin::kRequestMethod,
                    base::Value::CreateStringValue(request_method));
   request_info.Set(browser_plugin::kURL, base::Value::CreateStringValue(url));
 
   RequestPermission(BROWSER_PLUGIN_PERMISSION_TYPE_DOWNLOAD,
                     new DownloadRequest(callback),
                     request_info);
 }
 
 }  // namespace content