Add TitledUrlIndex for indexing arbitrary title/URL pairs

ios/chrome/browser/bookmarks/bookmark_client_impl.cc

 // Copyright 2015 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 "ios/chrome/browser/bookmarks/bookmark_client_impl.h"
 
 #include "base/logging.h"
 #include "base/metrics/user_metrics.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "components/bookmarks/browser/bookmark_node.h"
@@ skipping 38 matching lines @@
       ios::HistoryServiceFactory::GetForBrowserState(
           browser_state_, ServiceAccessType::EXPLICIT_ACCESS);
   history::URLDatabase* url_db =
       history_service ? history_service->InMemoryDatabase() : nullptr;
   for (const auto* node : nodes) {
     // If |url_db| is the InMemoryDatabase, it might not cache all URLRows, but
     // it guarantees to contain those with |typed_count| > 0. Thus, if fetching
     // the URLRow fails, it is safe to assume that its |typed_count| is 0.
     int typed_count = 0;
     history::URLRow url;
-    if (url_db && url_db->GetRowForURL(node->url(), &url))
+    if (url_db && url_db->GetRowForURL(node->GetTitledUrlNodeUrl(), &url))
       typed_count = url.typed_count();
 
     NodeTypedCountPair pair(node, typed_count);
     node_typed_count_pairs->push_back(pair);
   }
 }
 
 bool BookmarkClientImpl::IsPermanentNodeVisible(
     const bookmarks::BookmarkPermanentNode* node) {
   return node->type() == bookmarks::BookmarkNode::MOBILE;
@@ skipping 13 matching lines @@
 }
 
 bool BookmarkClientImpl::CanSyncNode(const bookmarks::BookmarkNode* node) {
   return true;
 }
 
 bool BookmarkClientImpl::CanBeEditedByUser(
     const bookmarks::BookmarkNode* node) {
   return true;
 }