Make the flash permission prompt work properly on file: URLs

chrome/browser/permissions/permission_context_base.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 "chrome/browser/permissions/permission_context_base.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/callback.h"
@@ skipping 274 matching lines @@
 }
 
 void PermissionContextBase::UpdateContentSetting(
     const GURL& requesting_origin,
     const GURL& embedding_origin,
     ContentSetting content_setting) {
   DCHECK_EQ(requesting_origin, requesting_origin.GetOrigin());
   DCHECK_EQ(embedding_origin, embedding_origin.GetOrigin());
   DCHECK(content_setting == CONTENT_SETTING_ALLOW ||
          content_setting == CONTENT_SETTING_BLOCK);
+  DCHECK(!requesting_origin.SchemeIsFile());
+  DCHECK(!embedding_origin.SchemeIsFile());
 
   HostContentSettingsMapFactory::GetForProfile(profile_)
       ->SetContentSettingDefaultScope(requesting_origin, embedding_origin,
                                       content_settings_type_, std::string(),
                                       content_setting);
 }
 
 bool PermissionContextBase::IsPermissionKillSwitchOn() const {
   const std::string param = variations::GetVariationParamValue(
       kPermissionsKillSwitchFieldStudy,
       PermissionUtil::GetPermissionString(permission_type_));
 
   return param == kPermissionsKillSwitchBlockedValue;
 }