Add support for multiple simultaneous subresource_filter::Configurations.

components/subresource_filter/core/common/activation_scope.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_SUBRESOURCE_FILTER_CORE_COMMON_ACTIVATION_SCOPE_H_
 #define COMPONENTS_SUBRESOURCE_FILTER_CORE_COMMON_ACTIVATION_SCOPE_H_
 
 #include <iosfwd>
 
 namespace subresource_filter {
 
 // Defines the scope of triggering the Safe Browsing Subresource Filter.
 enum class ActivationScope {
   NO_SITES,
   // Allows to activate Safe Browsing Subresource Filter only on web sites from
   // the Safe Browsing blacklist.
   ACTIVATION_LIST,
   // Testing only. Allows to send activation signal to the RenderFrame for each
   // load.
   ALL_SITES,
-  LAST = ACTIVATION_LIST,
+  LAST = ALL_SITES,
 };
 
 // For logging use only.
 std::ostream& operator<<(std::ostream& os, const ActivationScope& state);
 
 }  // namespace subresource_filter
 
 #endif  // COMPONENTS_SUBRESOURCE_FILTER_CORE_COMMON_ACTIVATION_SCOPE_H_