ChromeWebView integration test for Incognito.

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_test_util.mm b/ios/web_view/test/web_view_test_util.mm
index f2538708a581a572e074e5983d96fbf18e70d594..79cf7be898db17bd24c5ff87ed2680bc0d94d39e 100644
--- a/ios/web_view/test/web_view_test_util.mm
+++ b/ios/web_view/test/web_view_test_util.mm
@@ -17,10 +17,13 @@ using testing::WaitUntilConditionOrTimeout;
 namespace ios_web_view {
 namespace test {
 
+CWVWebView* CreateWebView(CWVWebViewConfiguration* configuration) {
+  return [[CWVWebView alloc] initWithFrame:UIScreen.mainScreen.bounds
+                             configuration:configuration];
+}
+
 CWVWebView* CreateWebView() {
-  return [[CWVWebView alloc]
-      initWithFrame:UIScreen.mainScreen.bounds
-      configuration:[CWVWebViewConfiguration defaultConfiguration]];
+  return CreateWebView([CWVWebViewConfiguration defaultConfiguration]);
 }
 
 bool LoadUrl(CWVWebView* web_view, NSURL* url) {