Extensions: Switch to new permission message system, part II

extensions/common/permissions/api_permission_set.cc

 // Copyright 2013 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/common/permissions/api_permission_set.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
@@ skipping 237 matching lines @@
     }
   }
   return subset;
 }
 
 bool PermissionIDSet::Includes(const PermissionIDSet& subset) const {
   return base::STLIncludes<std::set<PermissionID>>(permissions_,
                                                    subset.permissions_);
 }
 
+bool PermissionIDSet::Equals(const PermissionIDSet& set) const {
+  return permissions_ == set.permissions_;
+}
+
 // static
 PermissionIDSet PermissionIDSet::Difference(const PermissionIDSet& set_1,
                                             const PermissionIDSet& set_2) {
   return PermissionIDSet(base::STLSetDifference<std::set<PermissionID>>(
       set_1.permissions_, set_2.permissions_));
 }
 
 // static
 PermissionIDSet PermissionIDSet::Intersection(const PermissionIDSet& set_1,
                                               const PermissionIDSet& set_2) {
   return PermissionIDSet(base::STLSetIntersection<std::set<PermissionID>>(
       set_1.permissions_, set_2.permissions_));
 }
 
 // static
 PermissionIDSet PermissionIDSet::Union(const PermissionIDSet& set_1,
                                        const PermissionIDSet& set_2) {
   return PermissionIDSet(base::STLSetUnion<std::set<PermissionID>>(
       set_1.permissions_, set_2.permissions_));
 }
 
 size_t PermissionIDSet::size() const {
   return permissions_.size();
 }
 
 bool PermissionIDSet::empty() const {
   return permissions_.empty();
 }
 
-PermissionIDSet::PermissionIDSet(std::set<PermissionID> permissions)
+PermissionIDSet::PermissionIDSet(const std::set<PermissionID>& permissions)
     : permissions_(permissions) {
 }
 
 bool PermissionIDSet::ContainsID(APIPermission::ID permission_id) {
   // TODO(sashab): Find a more efficient way to implement this.
   PermissionIDSet subset;
   for (const auto& permission : permissions_) {
     if (permission.id() == permission_id) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace extensions