[ios] Remove IDC_STOP and IDC_RELOAD

ios/chrome/test/earl_grey/chrome_earl_grey.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 "ios/chrome/test/earl_grey/chrome_earl_grey.h"
 
 #import <Foundation/Foundation.h>
 #import <WebKit/WebKit.h>
 
 #include "base/mac/foundation_util.h"
@@ skipping 97 matching lines @@
 + (void)loadURL:(const GURL&)URL {
   chrome_test_util::LoadUrl(URL);
   [ChromeEarlGrey waitForPageToFinishLoading];
 
   web::WebState* webState = chrome_test_util::GetCurrentWebState();
   if (webState->ContentIsHTML())
     web::WaitUntilWindowIdInjected(webState);
 }
 
 + (void)reload {
-  base::scoped_nsobject<GenericChromeCommand> reloadCommand(
-      [[GenericChromeCommand alloc] initWithTag:IDC_RELOAD]);
-  chrome_test_util::RunCommandWithActiveViewController(reloadCommand);
+  [chrome_test_util::BrowserCommandDispatcherForMainBVC() reload];
   [ChromeEarlGrey waitForPageToFinishLoading];
 }
 
 + (void)goBack {
   [chrome_test_util::BrowserCommandDispatcherForMainBVC() goBack];
 
   [ChromeEarlGrey waitForPageToFinishLoading];
 }
 
 + (void)goForward {
@@ skipping 65 matching lines @@
   GREYCondition* condition = [GREYCondition
       conditionWithName:@"Wait for web view not containing text"
                   block:^BOOL {
                     return !web::test::IsWebViewContainingText(
                         chrome_test_util::GetCurrentWebState(), text);
                   }];
   GREYAssert([condition waitWithTimeout:testing::kWaitForUIElementTimeout],
              @"Failed waiting for web view not containing %s", text.c_str());
 }
 @end