Cleanup ios_web_view integration tests.

ios/web_view/test/web_view_test_util.h

 // Copyright 2017 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_WEB_VIEW_TEST_WEB_VIEW_INTERACTION_TEST_UTIL_H_
-#define IOS_WEB_VIEW_TEST_WEB_VIEW_INTERACTION_TEST_UTIL_H_
+#ifndef IOS_WEB_VIEW_TEST_WEB_VIEW_TEST_UTIL_H_
+#define IOS_WEB_VIEW_TEST_WEB_VIEW_TEST_UTIL_H_
 
 #import <Foundation/Foundation.h>
 
 @class CWVWebView;
 
 namespace ios_web_view {
 namespace test {
 
+// Creates web view with default configuration and frame equal to screen bounds.
+CWVWebView* CreateWebView();
+
 // Returns whether the element with |element_id| in the passed |web_view| has
 // been tapped using a JavaScript click() event.
 bool TapChromeWebViewElementWithId(CWVWebView* web_view, NSString* element_id);
 
 // Waits until script is executed and synchronously returns the evaluation
 // result.
 id EvaluateJavaScript(CWVWebView* web_view, NSString* script, NSError** error);
 
 // Waits for |web_view| to contain |text|. Returns false if the condition is not
 // met within a timeout.
 bool WaitForWebViewContainingTextOrTimeout(CWVWebView* web_view,
                                            NSString* text);
 
 }  // namespace test
 }  // namespace ios_web_view
 
-#endif  // IOS_WEB_VIEW_TEST_WEB_VIEW_INTERACTION_TEST_UTIL_H_
+#endif  // IOS_WEB_VIEW_TEST_WEB_VIEW_TEST_UTIL_H_