Revert of Use ChromeBrowserStateManager instead of BrowserListIOS.

ios/chrome/browser/ui/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("//build/config/ios/rules.gni")
 
 source_set("ui") {
   sources = [
     "UIView+SizeClassSupport.h",
     "UIView+SizeClassSupport.mm",
@@ skipping 215 matching lines @@
     "open_in_toolbar.h",
     "open_in_toolbar.mm",
     "page_not_available_controller.h",
     "page_not_available_controller.mm",
     "preload_controller.h",
     "preload_controller.mm",
     "preload_controller_delegate.h",
     "prerender_delegate.h",
   ]
   deps = [
+    ":browser_list",
     ":resources",
     ":ui",
     "//base",
     "//base:i18n",
     "//components/bookmarks/browser",
     "//components/infobars/core",
     "//components/prefs",
     "//components/reading_list/core",
     "//components/reading_list/ios",
     "//components/search_engines",
@@ skipping 89 matching lines @@
     "MobileCoreServices.framework",
     "PassKit.framework",
     "Photos.framework",
     "QuartzCore.framework",
     "StoreKit.framework",
     "UIKit.framework",
     "WebKit.framework",
   ]
 }
 
+source_set("browser_list") {
+  sources = [
+    "browser_ios.h",
+    "browser_list_ios.h",
+    "browser_list_ios.mm",
+  ]
+  deps = [
+    "//ios/chrome/browser/browser_state",
+    "//ios/chrome/browser/tabs",
+  ]
+}
+
 source_set("test_support") {
   testonly = true
   sources = [
     "browser_view_controller_testing.h",
     "browser_view_controller_testing.mm",
   ]
   deps = [
     ":ui_internal",
     "//ios/chrome/browser/ui/toolbar",
     "//ios/chrome/browser/ui/toolbar:test_support",
@@ skipping 62 matching lines @@
     "//ios/chrome/browser/tabs:tabs_internal",
     "//ios/chrome/browser/ui/omnibox:omnibox_internal",
     "//ios/chrome/browser/ui/toolbar",
     "//ios/chrome/test/base:perf_test_support",
     "//testing/gtest",
     "//third_party/ocmock",
     "//ui/base:test_support",
   ]
   libs = [ "UIKit.framework" ]
 }