Allow navigations performed by extensions to pass through AllowExtensionResourceLoad.

chrome/browser/extensions/extension_protocols.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/browser/extensions/extension_protocols.h"
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/compiler_specific.h"
@@ skipping 352 matching lines @@
   // the resource is explicitly accessible or fits in a set of exception cases.
   // Note: This allows a case where two extensions execute in the same renderer
   // process to request each other's resources. We can't do a more precise
   // check, since the renderer can lie about which extension has made the
   // request.
   if (extension_info_map->process_map().Contains(
       request->url().host(), info->GetChildID())) {
     return true;
   }
 
+  // If the request is for navigations, then it should be allowed. The
+  // navigation logic will properly transfer the navigation to a

[Charlie Reis, 2013/11/01 18:47:50]

nit: navigation logic in CrossSiteResourceHandler will...

[nasko, 2013/11/01 18:49:53]

Done.

+  // privileged process before it commits.
+  if (ResourceType::IsFrame(info->GetResourceType()))
+    return true;
+
   // Extensions with webview: allow loading certain resources by guest renderers
   // with privileged partition IDs as specified in the manifest file.
   ExtensionRendererState* renderer_state =
       ExtensionRendererState::GetInstance();
   ExtensionRendererState::WebViewInfo webview_info;
   bool is_guest = renderer_state->GetWebViewInfo(info->GetChildID(),
                                                  info->GetRouteID(),
                                                  &webview_info);
   std::string resource_path = request->url().path();
   if (is_guest && webview_info.allow_chrome_extension_urls &&
@@ skipping 206 matching lines @@
                                     send_cors_header);
 }
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler* CreateExtensionProtocolHandler(
     bool is_incognito,
     ExtensionInfoMap* extension_info_map) {
   return new ExtensionProtocolHandler(is_incognito, extension_info_map);
 }