Cleanup ios_web_view integration tests.

ios/web_view/test/web_view_test_util.mm

Index: ios/web_view/test/web_view_test_util.mm
diff --git a/ios/web_view/test/web_view_interaction_test_util.mm b/ios/web_view/test/web_view_test_util.mm
similarity index 90%
rename from ios/web_view/test/web_view_interaction_test_util.mm
rename to ios/web_view/test/web_view_test_util.mm
index 56572335aa2f21af665165a5519fb1481ef99774..8ed4bc6a71e5ff04e19ac5d4399d17c5367f6869 100644
--- a/ios/web_view/test/web_view_interaction_test_util.mm
+++ b/ios/web_view/test/web_view_test_util.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "ios/web_view/test/web_view_interaction_test_util.h"
+#import "ios/web_view/test/web_view_test_util.h"
 
 #import <ChromeWebView/ChromeWebView.h>
 
@@ -17,6 +17,12 @@ using testing::WaitUntilConditionOrTimeout;
 namespace ios_web_view {
 namespace test {
 
+CWVWebView* CreateWebView() {
+  return [[CWVWebView alloc]
+      initWithFrame:UIScreen.mainScreen.bounds
+      configuration:[CWVWebViewConfiguration defaultConfiguration]];
+}
+
 bool TapChromeWebViewElementWithId(CWVWebView* web_view, NSString* element_id) {
   // TODO(crbug.com/725524): Share this script with Chrome.
   NSString* script = [NSString