Make custom GREYAction methods Chromium C-Style.

ios/chrome/browser/web/browsing_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 <XCTest/XCTest.h>
 #include <map>
 #include <memory>
 #include <string>
 
 #include "base/ios/ios_util.h"
@@ skipping 587 matching lines @@
                         assertWithMatcher:grey_interactable()
                                     error:&error];
                     return !error;
                   }];
   GREYAssert(
       [interactableCondition waitWithTimeout:testing::kWaitForUIElementTimeout],
       @"Web view did not become interactable.");
 
   web::WebState* currentWebState = chrome_test_util::GetCurrentWebState();
   [[EarlGrey selectElementWithMatcher:web::WebViewInWebState(currentWebState)]
-      performAction:web::webViewTapElement(currentWebState, ID)];
+      performAction:web::WebViewTapElement(currentWebState, ID)];
 
   // Wait until the keyboard shows up before tapping.
   GREYCondition* condition = [GREYCondition
       conditionWithName:@"Wait for the keyboard to show up."
                   block:^BOOL {
                     NSError* error = nil;
                     [[EarlGrey selectElementWithMatcher:GoButtonMatcher()]
                         assertWithMatcher:grey_notNil()
                                     error:&error];
                     return (error == nil);
@@ skipping 43 matching lines @@
   [[EarlGrey selectElementWithMatcher:OmniboxText(destinationURL.GetContent())]
       assertWithMatcher:grey_notNil()];
 
   // Go back and verify that the browser navigates to the original URL.
   [self goBack];
   [[EarlGrey selectElementWithMatcher:OmniboxText(URL.GetContent())]
       assertWithMatcher:grey_notNil()];
 }
 
 @end