[NTP] Cleanup: add brackets in components/ntp_snippets. [1/2]

components/ntp_snippets/bookmarks/bookmark_suggestions_provider.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/bookmarks/bookmark_suggestions_provider.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 199 matching lines @@
   std::vector<ContentSuggestion> suggestions;
   for (const BookmarkNode* bookmark : bookmarks) {
     ConvertBookmark(bookmark, &suggestions);
   }
   callback.Run(std::move(suggestions));
 }
 
 void BookmarkSuggestionsProvider::ClearDismissedSuggestionsForDebugging(
     Category category) {
   DCHECK_EQ(category, provided_category_);
-  if (!bookmark_model_->loaded())
+  if (!bookmark_model_->loaded()) {
     return;
+  }
   MarkAllBookmarksUndismissed(bookmark_model_);
 }
 
 void BookmarkSuggestionsProvider::BookmarkModelLoaded(
     bookmarks::BookmarkModel* model,
     bool ids_reassigned) {
   DCHECK_EQ(bookmark_model_, model);
   if (fetch_requested_) {
     fetch_requested_ = false;
     FetchBookmarksInternal();
@@ skipping 109 matching lines @@
     end_of_list_last_visit_date_ = threshold_time;
   } else {
     end_of_list_last_visit_date_ = suggestions.back().publish_date();
   }
 
   observer()->OnNewSuggestions(this, provided_category_,
                                std::move(suggestions));
 }
 
 void BookmarkSuggestionsProvider::FetchBookmarks() {
-  if (bookmark_model_->loaded())
+  if (bookmark_model_->loaded()) {
     FetchBookmarksInternal();
-  else
+  } else {
     fetch_requested_ = true;
+  }
 }
 
 void BookmarkSuggestionsProvider::NotifyStatusChanged(
     CategoryStatus new_status) {
-  if (category_status_ == new_status)
+  if (category_status_ == new_status) {
     return;
+  }
   category_status_ = new_status;
   observer()->OnCategoryStatusChanged(this, provided_category_, new_status);
 }
 
 }  // namespace ntp_snippets