Do not immediately block cross-renderer extension resource loads for non-web-triggered transitions

extensions/browser/url_request_util.cc

 // Copyright 2014 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 "extensions/browser/url_request_util.h"
 
 #include <string>
 
 #include "content/public/browser/resource_request_info.h"
 #include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
@@ skipping 31 matching lines @@
 
   // |owner_extension == extension| needs to be checked because extension
   // resources should only be accessible to WebViews owned by that extension.
   if (is_guest && owner_extension == extension &&
       WebviewInfo::IsResourceWebviewAccessible(extension, partition_id,
                                                resource_path)) {
     *allowed = true;
     return true;
   }
 
-  if (!ui::PageTransitionIsWebTriggerable(info->GetPageTransition())) {
+  if (is_guest &&
+      !ui::PageTransitionIsWebTriggerable(info->GetPageTransition())) {
     *allowed = false;
     return true;
   }
 
   // The following checks require that we have an actual extension object. If we
   // don't have it, allow the request handling to continue with the rest of the
   // checks.
   if (!extension) {
     *allowed = true;
     return true;
@@ skipping 48 matching lines @@
 
   // Since not all subresources are required to be listed in a v2
   // manifest, we must allow all subresource loads if there are any web
   // accessible resources. See http://crbug.com/179127.
   if (!content::IsResourceTypeFrame(info->GetResourceType()) &&
       WebAccessibleResourcesInfo::HasWebAccessibleResources(extension)) {
     *allowed = true;
     return true;
   }
 
+  if (!ui::PageTransitionIsWebTriggerable(info->GetPageTransition())) {
+    *allowed = false;
+    return true;
+  }
+
   // Couldn't determine if the resource is allowed or not.
   return false;
 }
 
 bool IsWebViewRequest(const net::URLRequest* request) {
   const content::ResourceRequestInfo* info =
       content::ResourceRequestInfo::ForRequest(request);
   // |info| can be NULL sometimes: http://crbug.com/370070.
   if (!info)
     return false;
   return WebViewRendererState::GetInstance()->IsGuest(info->GetChildID());
 }
 
 }  // namespace url_request_util
 }  // namespace extensions