Add disabled_test_macro import to EarlGrey base test cases.

ios/chrome/test/earl_grey/chrome_test_case.h

 // 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.
 
 #ifndef IOS_CHROME_TEST_EARL_GREY_CHROME_TEST_CASE_H_
 #define IOS_CHROME_TEST_EARL_GREY_CHROME_TEST_CASE_H_
 
 #import <XCTest/XCTest.h>
 
 #import "base/ios/block_types.h"
+#import "ios/testing/earl_grey/disabled_test_macros.h"
 
 // Base class for all Chrome Earl Grey tests.
 @interface ChromeTestCase : XCTestCase
 
 // Sets a block to always be executed at the end of a test during tearDown,
 // whether the test passes or fails. This shall only be set once per test.
 - (void)setTearDownHandler:(ProceduralBlock)tearDownHandler;
 
 // Removes any UI elements that are present, to ensure it is in a clean state.
 + (void)removeAnyOpenMenusAndInfoBars;
 
 // Closes all tabs, and waits for the UI to synchronize.
 + (void)closeAllTabs;
 
 // Turns off mock authentication. It will automatically be re-enabled at the
 // end of the test. This shall only be called once per test.
 - (void)disableMockAuthentication;
 
 // Stops the HTTP server. It will be re-started at the end of the test. This
 // should only be called when the HTTP server is running. This shall only be
 // called once per test.
 - (void)stopHTTPServer;
 
 @end
 
 #endif  // IOS_CHROME_TEST_EARL_GREY_CHROME_TEST_CASE_H_