[NTP] Cleanup: add brackets in components/ntp_snippets. [2/2]

components/ntp_snippets/category_factory.cc

 // 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.
 
 #include "components/ntp_snippets/category_factory.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 38 matching lines @@
 
 Category CategoryFactory::FromIDValue(int id) {
   DCHECK_GE(id, 0);
   DCHECK(id < static_cast<int>(KnownCategories::LOCAL_CATEGORIES_COUNT) ||
          id > static_cast<int>(KnownCategories::REMOTE_CATEGORIES_OFFSET));
   return InternalFromID(id);
 }
 
 bool CategoryFactory::CompareCategories(const Category& left,
                                         const Category& right) const {
-  if (left == right)
+  if (left == right) {
     return false;
+  }
   return std::find(ordered_categories_.begin(), ordered_categories_.end(),
                    left) < std::find(ordered_categories_.begin(),
                                      ordered_categories_.end(), right);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Private methods
 
 bool CategoryFactory::CategoryExists(int id) {
   return std::find(ordered_categories_.begin(), ordered_categories_.end(),
                    Category(id)) != ordered_categories_.end();
 }
 
 void CategoryFactory::AddKnownCategory(KnownCategories known_category) {
   InternalFromID(static_cast<int>(known_category));
 }
 
 Category CategoryFactory::InternalFromID(int id) {
   auto it = std::find(ordered_categories_.begin(), ordered_categories_.end(),
                       Category(id));
-  if (it != ordered_categories_.end())
+  if (it != ordered_categories_.end()) {
     return *it;
+  }
 
   Category category(id);
   ordered_categories_.push_back(category);
   return category;
 }
 
 }  // namespace ntp_snippets