Split up ios/web:test_support.

ios/chrome/browser/ui/reading_list/reading_list_egtest.mm

 // 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 <EarlGrey/EarlGrey.h>
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 13 matching lines @@
 #import "ios/chrome/test/app/tab_test_util.h"
 #import "ios/chrome/test/earl_grey/accessibility_util.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/chrome/test/earl_grey/chrome_test_case.h"
 #import "ios/testing/wait_util.h"
 #import "ios/third_party/material_components_ios/src/components/Snackbar/src/MaterialSnackbar.h"
 #import "ios/web/public/navigation_manager.h"
 #import "ios/web/public/reload_type.h"
-#import "ios/web/public/test/http_server.h"
-#import "ios/web/public/test/http_server_util.h"
-#import "ios/web/public/test/response_providers/delayed_response_provider.h"
-#import "ios/web/public/test/response_providers/html_response_provider.h"
+#import "ios/web/public/test/http_server/delayed_response_provider.h"
+#import "ios/web/public/test/http_server/html_response_provider.h"
+#import "ios/web/public/test/http_server/http_server.h"
+#include "ios/web/public/test/http_server/http_server_util.h"
 #include "net/base/network_change_notifier.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 const char kContentToRemove[] = "Text that distillation should remove.";
 const char kContentToKeep[] = "Text that distillation should keep.";
 const char kDistillableTitle[] = "Tomato";
@@ skipping 742 matching lines @@
       assertWithMatcher:grey_nil()];
   TapButtonWithID(IDS_IOS_READING_LIST_EDIT_BUTTON);
   TapButtonWithID(IDS_IOS_READING_LIST_DELETE_ALL_READ_BUTTON);
 
   // Verify the background string is displayed.
   [[EarlGrey selectElementWithMatcher:EmptyBackground()]
       assertWithMatcher:grey_notNil()];
 }
 
 @end