Use bookmark creation date fallback for 6 weeks after installing M54

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 13 matching lines @@
 
 using bookmarks::BookmarkModel;
 using bookmarks::BookmarkNode;
 
 namespace {
 
 const int kMaxBookmarks = 10;
 const int kMinBookmarks = 3;
 const int kMaxBookmarkAgeInDays = 42;
 
-const char* kMaxBookmarksParamName = "max_count";
-const char* kMinBookmarksParamName = "min_count";
-const char* kMaxBookmarkAgeInDaysParamName = "max_age_in_days";
+const char* kMaxBookmarksParamName = "ntp_bookmarks_max_count";
+const char* kMinBookmarksParamName = "ntp_bookmarks_min_count";
+const char* kMaxBookmarkAgeInDaysParamName = "ntp_bookmarks_max_age_in_days";

[Marc Treib, 2016/08/19 11:41:11]

nit: I'd remove the "ntp_", that much is clear from context.

[Philipp Keck, 2016/08/19 12:49:52]

Done.

 
 base::Time GetThresholdTime() {
   std::string age_in_days_string = variations::GetVariationParamValueByFeature(
     ntp_snippets::kBookmarkSuggestionsFeature, kMaxBookmarkAgeInDaysParamName);
   int age_in_days = 0;
   if (!base::StringToInt(age_in_days_string, &age_in_days))
     age_in_days = kMaxBookmarkAgeInDays;
 
   return base::Time::Now() - base::TimeDelta::FromDays(age_in_days);
 }
 
 int GetMaxCount() {
   std::string max_count_string = variations::GetVariationParamValueByFeature(
       ntp_snippets::kBookmarkSuggestionsFeature, kMaxBookmarksParamName);
   int max_count = 0;
   if (base::StringToInt(max_count_string, &max_count))
     return max_count;
 
   return kMaxBookmarks;
 }
 
 int GetMinCount() {
   std::string min_count_string = variations::GetVariationParamValueByFeature(
       ntp_snippets::kBookmarkSuggestionsFeature, kMinBookmarksParamName);
   int min_count = 0;
   if (base::StringToInt(min_count_string, &min_count))
     return min_count;
+  if (!min_count_string.empty())
+    LOG(WARNING) << "Failed to parse min bookmarks count" << min_count_string;

[Marc Treib, 2016/08/19 11:41:11]

Add the same above for max_count please

[Philipp Keck, 2016/08/19 12:49:52]

Done. Also for age_in_days_string (GetThresholdTime()) above.

 
   return kMinBookmarks;
 }
 
 }  // namespace
 
 namespace ntp_snippets {
 
 BookmarkSuggestionsProvider::BookmarkSuggestionsProvider(
     ContentSuggestionsProvider::Observer* observer,
@@ skipping 81 matching lines @@
   if (fetch_requested_) {
     fetch_requested_ = false;
     FetchBookmarksInternal();
   }
 }
 
 void BookmarkSuggestionsProvider::OnWillChangeBookmarkMetaInfo(
     BookmarkModel* model,
     const BookmarkNode* node) {
   // Store the last visit date of the node that is about to change.
-  node_to_change_last_visit_date_ =
-      GetLastVisitDateForBookmarkIfNotDismissed(node);
+  node_to_change_last_visit_date_ = GetLastVisitDateForBookmarkIfNotDismissed(
+      node, /*creation_date_fallback=*/true);
 }
 
 void BookmarkSuggestionsProvider::BookmarkMetaInfoChanged(
     BookmarkModel* model,
     const BookmarkNode* node) {
-  base::Time time = GetLastVisitDateForBookmarkIfNotDismissed(node);
+  base::Time time = GetLastVisitDateForBookmarkIfNotDismissed(
+      node, /*creation_date_fallback=*/true);
   if (time == node_to_change_last_visit_date_ ||
       time < end_of_list_last_visit_date_)
     return;
 
   // Last visit date of a node has changed (and is relevant for the list), we
   // should update the suggestions.
   FetchBookmarks();
 }
 
 void BookmarkSuggestionsProvider::BookmarkNodeRemoved(
       bookmarks::BookmarkModel* model,
       const bookmarks::BookmarkNode* parent,
       int old_index,
       const bookmarks::BookmarkNode* node,
       const std::set<GURL>& no_longer_bookmarked) {
-  if (GetLastVisitDateForBookmarkIfNotDismissed(node) <
-      end_of_list_last_visit_date_)
+  if (GetLastVisitDateForBookmarkIfNotDismissed(
+          node, /*creation_date_fallback=*/true) <
+      end_of_list_last_visit_date_) {
     return;
+  }
 
   // Some node from our list got deleted, we should update the suggestions.
   FetchBookmarks();
 }
 
 ContentSuggestion BookmarkSuggestionsProvider::ConvertBookmark(
     const BookmarkNode* bookmark) {
   ContentSuggestion suggestion(
       MakeUniqueID(provided_category_, bookmark->url().spec()),
       bookmark->url());
 
   suggestion.set_title(bookmark->GetTitle());
   suggestion.set_snippet_text(base::string16());
-  suggestion.set_publish_date(GetLastVisitDateForBookmark(bookmark));
+  suggestion.set_publish_date(
+      GetLastVisitDateForBookmark(bookmark, /*creation_date_fallback=*/true));
   suggestion.set_publisher_name(base::UTF8ToUTF16(bookmark->url().host()));
   return suggestion;
 }
 
 void BookmarkSuggestionsProvider::FetchBookmarksInternal() {
   DCHECK(bookmark_model_->loaded());
 
   NotifyStatusChanged(CategoryStatus::AVAILABLE);
 
   base::Time threshold_time = GetThresholdTime();
@@ skipping 23 matching lines @@
 
 void BookmarkSuggestionsProvider::NotifyStatusChanged(
     CategoryStatus new_status) {
   if (category_status_ == new_status)
     return;
   category_status_ = new_status;
   observer()->OnCategoryStatusChanged(this, provided_category_, new_status);
 }
 
 }  // namespace ntp_snippets