Remove old APIs from components/task_scheduler_util/.

ios/chrome/browser/web/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.
 
 import("//ios/web/js_compile.gni")
 
 source_set("web") {
   configs += [ "//build/config/compiler:enable_arc" ]
   sources = [
     "dom_altering_lock.h",
@@ skipping 145 matching lines @@
     ":injected_js",
     ":resources",
     "//base",
     "//components/content_settings/core/browser",
     "//components/dom_distiller/core",
     "//components/error_page/common",
     "//components/infobars/core",
     "//components/prefs",
     "//components/resources",
     "//components/strings",
-    "//components/task_scheduler_util/initialization",
-    "//components/task_scheduler_util/variations",
+    "//components/task_scheduler_util/browser",
     "//components/version_info",
     "//ios/chrome/app/strings",
     "//ios/chrome/browser",
     "//ios/chrome/browser:browser_impl",
     "//ios/chrome/browser/browser_state",
     "//ios/chrome/browser/content_settings",
     "//ios/chrome/browser/ssl",
     "//ios/chrome/browser/ui/commands",
     "//ios/chrome/browser/ui/overscroll_actions",
     "//ios/chrome/browser/ui/static_content",
@@ skipping 115 matching lines @@
 # Clean Skeleton targets.
 source_set("web_clean_skeleton") {
   sources = [
     "web_mediator+internal.h",
     "web_mediator.h",
     "web_mediator.mm",
   ]
 
   configs += [ "//build/config/compiler:enable_arc" ]
 }