[Content suggestions] Add a feature to fetch favicons from a new server

chrome/browser/flag_descriptions.cc

 // Copyright 2017 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 "chrome/browser/flag_descriptions.h"
 
 namespace flag_descriptions {
 
 //  Material Design version of chrome://bookmarks
 
@@ skipping 2269 matching lines @@
     "Set category ranker to order categories of content suggestions (e.g. "
     "on the NTP).";
 
 const char kEnableNtpSnippetsVisibilityName[] =
     "Make New Tab Page Snippets more visible.";
 
 const char kEnableNtpSnippetsVisibilityDescription[] =
     "If enabled, the NTP snippets will become more discoverable with a "
     "larger portion of the first card above the fold.";
 
+const char kEnableContentSuggestionsNewFaviconServerName[] =
+    "Get favicons for content suggestions from a new server.";
+
+const char kEnableContentSuggestionsNewFaviconServerDescription[] =
+    "If enabled, the content suggestions (on the NTP) will get favicons from a "
+    "new favicon server.";
+
 const char kEnableNtpRemoteSuggestionsName[] =
     "Show server-side suggestions on the New Tab page";
 
 const char kEnableNtpRemoteSuggestionsDescription[] =
     "If enabled, the list of content suggestions on the New Tab page (see "
     "#enable-ntp-snippets) will contain server-side suggestions (e.g., "
     "Articles for you). Furthermore, it allows to override the source used "
     "to retrieve these server-side suggestions.";
 
 const char kEnableNtpRecentOfflineTabSuggestionsName[] =
@@ skipping 607 matching lines @@
 const char kEnableEhvInputName[] =
     "Emoji, handwriting and voice input on opt-in IME menu";
 
 const char kEnableEhvInputDescription[] =
     "Enable access to emoji, handwriting and voice input form opt-in IME "
     "menu.";
 
 #endif  // #if defined(OS_CHROMEOS)
 
 }  // namespace flag_descriptions