Identify MostVisited by item instead of URL

ios/chrome/browser/ui/content_suggestions/BUILD.gn

 # 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.
 
 source_set("content_suggestions") {
   sources = [
     "content_suggestions_collection_updater.h",
     "content_suggestions_collection_updater.mm",
     "content_suggestions_collection_utils.h",
     "content_suggestions_collection_utils.mm",
@@ skipping 11 matching lines @@
     "//ios/chrome/app/strings",
     "//ios/chrome/browser/ui",
     "//ios/chrome/browser/ui/collection_view",
     "//ios/chrome/browser/ui/commands",
     "//ios/chrome/browser/ui/content_suggestions/cells:cells_ui",
     "//ios/chrome/browser/ui/content_suggestions/identifier",
     "//ios/chrome/browser/ui/favicon:favicon_ui",
     "//ios/chrome/browser/ui/toolbar",
     "//mojo/common:common_custom_types",
     "//ui/base",
-    "//url",
   ]
   public_deps = [
     "//ios/third_party/material_components_ios",
   ]
   configs += [ "//build/config/compiler:enable_arc" ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
@@ skipping 20 matching lines @@
     "resources/content_suggestions_no_image@2x.png",
     "resources/content_suggestions_no_image@3x.png",
     "resources/content_suggestions_offline.png",
     "resources/content_suggestions_offline@2x.png",
     "resources/content_suggestions_offline@3x.png",
   ]
   outputs = [
     "{{bundle_resources_dir}}/{{source_file_part}}",
   ]
 }