[ios] Remove IDC_BACK and IDC_FORWARD

ios/chrome/browser/ui/omnibox_perftest.mm

 // Copyright (c) 2012 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 <UIKit/UIKit.h>
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #import "base/test/ios/wait_util.h"
@@ skipping 89 matching lines @@
         [OCMockObject niceMockForProtocol:@protocol(WebToolbarDelegate)];
     [[[webToolbarDelegate stub] andReturnValue:OCMOCK_VALUE(model_for_mock)]
         toolbarModelIOS];
     [[[webToolbarDelegate stub] andReturnValue:OCMOCK_VALUE(web_state_for_mock)]
         currentWebState];
     id urlLoader = [OCMockObject niceMockForProtocol:@protocol(UrlLoader)];
     toolbar_ = [[WebToolbarController alloc]
         initWithDelegate:webToolbarDelegate
                urlLoader:urlLoader
             browserState:chrome_browser_state_.get()
-         preloadProvider:nil];
+         preloadProvider:nil
+              dispatcher:nil];
     UIView* toolbarView = [toolbar_ view];
     CGRect toolbarFrame = toolbarView.frame;
     toolbarFrame.origin = CGPointZero;
     toolbarFrame.size.width = screenBounds.size.width;
     toolbarView.frame = toolbarFrame;
     // Add toolbar to window.
     [window_ addSubview:toolbarView];
     base::test::ios::WaitUntilCondition(^bool() {
       return IsToolbarLoaded(window_);
     });
@@ skipping 155 matching lines @@
         }
         NSLog(@"%2d: %@", index, logMessage);
         return elapsed;
       },
       ^() {
         [textField setText:@""];
         DisableKeyboard(textField);
       });
 }
 }