[Popular Sites] Add Variations parameter to override URL path

components/ntp_tiles/webui/ntp_tiles_internals_message_handler.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_tiles/webui/ntp_tiles_internals_message_handler.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
@@ skipping 92 matching lines @@
 
     std::string url;
     dict->GetString("popular.overrideURL", &url);
     if (url.empty()) {
       prefs->ClearPref(ntp_tiles::prefs::kPopularSitesOverrideURL);
     } else {
       prefs->SetString(ntp_tiles::prefs::kPopularSitesOverrideURL,
                        url_formatter::FixupURL(url, std::string()).spec());
     }
 
+    std::string directory;
+    dict->GetString("popular.overrideDirectory", &directory);
+    if (directory.empty()) {
+      prefs->ClearPref(ntp_tiles::prefs::kPopularSitesOverrideDirectory);
+    } else {
+      prefs->SetString(ntp_tiles::prefs::kPopularSitesOverrideDirectory,
+                       directory);
+    }
+
     std::string country;
     dict->GetString("popular.overrideCountry", &country);
     if (country.empty()) {
       prefs->ClearPref(ntp_tiles::prefs::kPopularSitesOverrideCountry);
     } else {
       prefs->SetString(ntp_tiles::prefs::kPopularSitesOverrideCountry, country);
     }
 
     std::string version;
     dict->GetString("popular.overrideVersion", &version);
@@ skipping 51 matching lines @@
 
   if (most_visited_sites_->DoesSourceExist(TileSource::SUGGESTIONS_SERVICE)) {
     value.SetString("suggestionsService.status", suggestions_status_);
   } else {
     value.SetBoolean("suggestionsService", false);
   }
 
   if (most_visited_sites_->DoesSourceExist(TileSource::POPULAR)) {
     auto* popular_sites = most_visited_sites_->popular_sites();
     value.SetString("popular.url", popular_sites->GetURLToFetch().spec());
+    value.SetString("popular.directory", popular_sites->GetDirectoryToFetch());
     value.SetString("popular.country", popular_sites->GetCountryToFetch());
     value.SetString("popular.version", popular_sites->GetVersionToFetch());
 
     value.SetString(
         "popular.overrideURL",
         prefs->GetString(ntp_tiles::prefs::kPopularSitesOverrideURL));
     value.SetString(
+        "popular.overrideDirectory",
+        prefs->GetString(ntp_tiles::prefs::kPopularSitesOverrideDirectory));
+    value.SetString(
         "popular.overrideCountry",
         prefs->GetString(ntp_tiles::prefs::kPopularSitesOverrideCountry));
     value.SetString(
         "popular.overrideVersion",
         prefs->GetString(ntp_tiles::prefs::kPopularSitesOverrideVersion));
 
     value.SetString("popular.json", popular_sites_json_);
   } else {
     value.SetBoolean("popular", false);
   }
@@ skipping 22 matching lines @@
 
 void NTPTilesInternalsMessageHandler::OnMostVisitedURLsAvailable(
     const NTPTilesVector& tiles) {
   SendTiles(tiles);
 }
 
 void NTPTilesInternalsMessageHandler::OnIconMadeAvailable(
     const GURL& site_url) {}
 
 }  // namespace ntp_tiles