Split up ios/web:test_support.

ios/web/shell/test/context_menu_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 <WebKit/WebKit.h>
 #import <XCTest/XCTest.h>
 
 #import "base/ios/block_types.h"
 #include "base/strings/sys_string_conversions.h"
 #import "ios/testing/earl_grey/matchers.h"
-#import "ios/web/public/test/http_server.h"
-#include "ios/web/public/test/http_server_util.h"
+#import "ios/web/public/test/http_server/http_server.h"
+#include "ios/web/public/test/http_server/http_server_util.h"
 #import "ios/web/public/test/web_view_interaction_test_util.h"
 #import "ios/web/shell/test/app/web_shell_test_util.h"
 #include "ios/web/shell/test/app/web_view_interaction_test_util.h"
 #import "ios/web/shell/test/earl_grey/shell_actions.h"
 #import "ios/web/shell/test/earl_grey/shell_earl_grey.h"
 #import "ios/web/shell/test/earl_grey/shell_matchers.h"
 #import "ios/web/shell/test/earl_grey/web_shell_test_case.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ skipping 151 matching lines @@
 
   // Dismiss the context menu.
   [[EarlGrey selectElementWithMatcher:ElementToDismissContextMenu(@"Cancel")]
       performAction:grey_tap()];
 
   // Context menu should go away after the tap.
   [[EarlGrey selectElementWithMatcher:copyItem] assertWithMatcher:grey_nil()];
 }
 
 @end